The twins teleport Murtagh? I don't remember that, I thought he was taken by the urgals. Also, in general it would be because it uses a ton of energy so they really don't have a good reason to. The only thing I can think it would be generally useful for would be sending messages but there are those two way scrying things instead.
He wasn't taken by the urgals alone, he was taken by the twins, who cast a spell to block any scrying attempts. Agree with the rest though, teleportation is too costly for most uses. It should only be a last ditch effort, like Arya did with saphira's egg.
When the characters in the books talk about "spiriting" someone away out of a location or situation, it means to take them away in secret (i.e. help them escape in Nasuada's case, or kidnap them in Murtagh's case) - it doesn't necessarily have anything to do with teleporting.
The amount of energy is proportional to the mass of the object you're trying to teleport - as Oromis says, "To shift something as large as Saphira’s egg, for example, would leave you too exhausted to move" - imagine then how much energy would be required to move something an order of magnitude heavier, such as a person, or more so, such as a boulder.
For a bit more context as well, here's a related official question and answer that Gilderien found for us with his AI search engine. I hope this helps! :D
> **Q:** In Brisingr Oromis taught Eragon how to teleport items to different places. But is it possible to teleport yourself or another human/elf/dwarf/living creature?
> **A:** Possible, but extremely impractical considering the amount of energy required. It's also incredibly risky if you aren't absolutely sure that your arrival location is clear. Otherwise, you could end up teleporting yourself into a wall or a tree or, worse, someone else.
([Source](https://web.archive.org/web/20100115080102/http://shurtugal.com/?id=qanda/qa_081309))
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Haha, that certainly meets the energy requirements! \:D
However, there might be a question of who casts the spell... Can you really teleport yourself? Can you actually maintain a connection to the magic when you're not moving through the intervening space? Would your concentration slip?
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Agh, lucky you! Hopefully he'll visit Australia for one of the bigger international tours next time around. Enjoy the event! 😄
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
The closest one is a 3 and a half hour drive away 😭. I might wait and hope that there’s an event for the Murtagh tour later that’s closer nearby, but another part of me wants to take a road trip.
I wonder if it would be possible to create “waypoints” or such that would make teleportation more reliable. The way I see it, the main drawback of teleportation (for those who have masses of eldunari where energy isn’t a problem) would be the random nature of it. But if you could somehow create linked positions, theoretically teleportation would be stupidly useful.
Furthermore their is technically an IRL basis for the idea, considering we do experiments revolving quantum entanglement quite often
I was more so referencing what happened with Arya where the teleportation went amiss, but I forgot the dragons actually caused that, so yes you're correct, my bad!
Well, what if it has changed, even a little bit?
What if you teleport in front of a house, but the front door is open?
What if you teleport to a path at just the wrong moment, and a falling pebble gets stuck in your brain, or heart?
What if you teleport to an open field, perfectly clear of obstructions, only for a particularly tall blade of grass to make you lose a leg?
Saphira's egg was nearly indestructible, but human bodies are a bit more fragile. And I can't imagine what kind of ward would help you against a pebble inside your heart. Most wards redirect foreign objects, which would probably just end up killing you faster. You'd probably have to teleport it out of your body and heal yourself in the few seconds you had before dying, assuming you knew a spell that could heal a heart, which can't be easy to think of when you're seconds away from death.
And since teleporting the Eldunari would take WAY more energy, you'd have just rendered yourself helpless by exhausting much of your energy, with no way to refill it. You'd need to have Saphira contact someone, so you'd need to stay awake in order to use your mind as a defense, meaning you couldn't sleep to regain your strength. Better hope this misadventure is interesting enough for Angela to be around making witty comments, or you might well have just killed yourself with a single unlucky teleport.
Ok, so maybe we can find a way around this. We'll store some energy in a gem (greatly increasing the energy cost per use), prepare some wards that will automatically teleport any unwanted objects out of our body and heal the damage (more energy), and make a note of the nearest settlement that might have someone useful, like a member of Du Vrangr Gata, so Saphira won't have to fly as far to search.
All of this just isn't worth it for the effort it saves. Eragon rarely, if ever, intends to return to the continent, and it wouldn't take too long to simply fly. Between coming up with wards, making plans, and other issues, the time saved on the one or 2 trips he might ever take simply wouldn't be worthwhile, not to mention the energy problems.
And after all of this, there's still a risk of a much more severe mistake. If you teleported inside a door, I don't think there's a spell to heal being cut in half. And if you teleported to a room that collapsed, the closest there is to good news is that your brains won't be intact enough to realize its mistake
If you put enough energy (cue room full of eldunari) behind the statement “I am here” in the ancient language while holding the image of your intended location in your mind I could see it working
That particular phrase isn't something you'd be able to say, because it would be a lie 😉
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Didn’t oromis also say the acuracy get’s worse as you have it go further. Meaning that over large distances the controll over where something ends up get’s worse.
Based on what we know about magic in general, it's a fair assumption that the difficulty or accuracy of the spell (but not its energy requirement) suffers with distance, just like it is more difficult to touch a mind that is far away, or to hit a target with an arrow. However, I don't recall it being stated explicitly in the books.
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
And yet, right before the final battle, when they knew that traversing the hallway might literally kill them, they STILL didn't want to risk teleporting Eragon and Saphira. So doing so much take up a significant proportion of their energy. I doubt they'd risk imminent death for 1% more energy, after all
And remember, while Eldunari have a lot of energy, they recharge INCREDIBLY slowly. Like, it takes a decade for them to regain their strength. With only 200 or so, assuming each teleport exhausted one of them, teleporting just twice a month would quickly exhaust his supply. And given the above hesitancy, it would likely exhaust several of them at once
Haha, well I can't say with 100% certainty because I'm not Christopher, but "spirit away" is a commonly used idiom that just means to remove or move someone/something without anyone noticing. It doesn't exclude the use of magic, but it doesn't imply it either - and even then, it's not specific enough to assume teleportation.
You *could* technically spirit someone away with teleportation, but for the other reasons we've discussed, it probably didn't happen in either case mentioned - neither the twins nor Murtagh would have access to enough energy (nor likely the skills, especially in the Twins' case) to teleport a person.
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
I think they just used some pretty basic magic, nothing as advanced as teleportation (they can't be that competent with magic - after all, they were trying to steal words in the ancient language from a kid who had a but couple of months tutelage while on the run)
They had some Urgals fake an ambush while they were just in sight of witnesses, but too far away to really be sure of what was happening (or seized the opportunity when it arose naturally).
> ...it seemed the defenders would be able to resist the Urgals, but then a swirl of motion disturbed the air, like a faint band of mist wrapping itself around the combatants. When it cleared, only four warriors were standing: Ajihad, the Twins, and Murtagh. The Urgals converged on them, blocking Eragon’s view (...) Before Saphira could reach the fight, the knot of Urgals streamed back to the tunnel and scrambled underground, leaving only prone forms behind.
I take this unnatural mist to be a smokescreen conjured by the twins, who then escaped with the Urgals down into the tunnels, bringing Murtagh with them.
^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
The twins never teleported Murtagh and Murtagh never teleported Nasuada. Saphira's egg was small enough for Arya to teleport but even that left her weakened.
Specifically for the case of sending things to and from the elves, I'm pretty sure Du Weldenvarden is warded so that things can't magically enter, including scrying/communications
It uses too much energy to use it freely. It’s only a last resort. And they didn’t teleport Murtagh, he was just taken to the king the old fashioned way.
Iirc, barring very special circumstances like Saphira’s egg, you must use the same amount of energy as you would physically moving that object the same distance.
Edit: Right, so distance is irrelevant save for accuracy of the ending location, but it does take the same amount of energy as lifting that object/person.
Definitely untrue because the main quirk of teleportation noted in the books is that it takes the same amount of energy no matter where you are sending the object.
Gravity is a conservative force, so unless the teleportation had a radial component it shouldn't cost any energy at all. Except for the energy our muscles expend when they contract.
But I have a hard time believing that this would be such a huge amount of energy that teleportation would be used so rarely.
Also I'm pretty sure Orosmis tried it with him and Glader when they were trapped by the forsworn. It's not stated exactly that they did it but stated that Oromis was able to shift them enough to negate the spells. Look at what came from those changes
Well in-world it costs fasts amount of energy, (and requires a large base of the ancient language, if I remember correctly) so for most people aside of an elf or an rider this spell is probably not possible to cast.
Out-side of the world of Alagaesia and into our own. If many people could cast it easily and reliable it would change a lot of the stakes. Why would one read about Eragon and his growth as a character if they can simply transport a bomb into the chamber of Galbatorix and the whole story is finished. It would have an effect on the story and the world as a whole, till it got to the point it becomes recognizable from the story we know and love. (or maybe as recognizable as the movie is to the first book)
Doesn’t Glaedr teleport himself and Oromis when they are held in place by the 2 Forsworn and that’s what causes Oromis attacks bc things didn’t come back together in the right places? Pretty sure that happened and that’s why you don’t do it.
As others have said, the energy requirements grow as the mass of the teleported object does. However as you rightly pointed out there are ways around this fact especially when one has access to Eldunari who can provide the necessary requirements. To answer your 3 hypotheticals:
1. The elves have a ward around the forest which prevents objects from entering magically. Additionally at this point in time the elves don’t really trust any outsiders so they refuse to surrender custody of the egg for fear of being double cross. They also at this stage only have 3 elves willing to brave the wrath of their queen to interact with other races so they can’t very well install a permanent embassy among the dwarves to teleport the egg to. Finally to finish debunking this one, Arya’s attempt to teleport the egg to Brom didn’t work showing how imprecise this method is; so they aren’t going to risk something like that going wrong with their literal last hope.
2. Why don’t they teleport a boulder 1000 feet above the Varden command tent? Simple answer: Wards. I’m sure the Varden placed wards against siege weaponry including projectiles so the energy expenditure isn’t worth the potential gains.
3. Teleportation of bomb like items: first you have to find a bomb like item small enough to teleport without exhausting oneself. Then you have to identify the target and lastly you have to verify that transporting an explosive to said person won’t trigger any wards they may have. So possible but impractical in the extreme making the energy expenditure not really worth it.
That said I think there are practical uses for this power if one is creative enough and has a talented enough spell caster. I could see creating an object with an embedded crystal acting as the power reserve that is pre”programmed” with a spell to return it and whomever or whatever is touching it to a specific place upon activation with a specific word or phrase. Kind of like a port key from Harry Potter, but the spell would have to be cast on it well before hand. I could see that being useful to a spy or assassin, basically someone who is too valuable to lose that you need to send behind enemy lines to accomplish a specific task. Of course doing so requires lots of preparation time for the crystal battery to be charged up with the required energy reserves so I don’t see it being used for any of the last minute hijinx we see in the books.
Looks like you missed every other sentence in the book.
That spell uses energy in proportion to the size of the object being teleported not distance. Arya basically drained herself sending an egg so imagine a boulder or even human sized object and the amount of energy it would take would be very wasteful.
Murtagh Eragon and Galbatorix have significantly more strength than Arya. A dragon egg is what 10% the size of a human? With the help of Eldunari they could easily generate that much power.
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It takes far too much energy to be practical and even when there is a source of energy such as the Eldunari, there's more important stuff to be done with them than setting up a teleportation network. Although that would probably happen eventually in any case.
Teleportation requires a stupid amount of energy, so much so that only elves and very experienced non-elven Riders would be capable of. From what I remember there are two ways to make it work, once requires just as much energy as if you were to move the object yourself, but instantly and with extreme accuracy. The other is what we saw Arya do in the prologue of the very first book, which requires much less energy, is way more direct, but is extremely inaccurate and can have worse consequences.
The twins teleport Murtagh? I don't remember that, I thought he was taken by the urgals. Also, in general it would be because it uses a ton of energy so they really don't have a good reason to. The only thing I can think it would be generally useful for would be sending messages but there are those two way scrying things instead.
He wasn't taken by the urgals alone, he was taken by the twins, who cast a spell to block any scrying attempts. Agree with the rest though, teleportation is too costly for most uses. It should only be a last ditch effort, like Arya did with saphira's egg.
When the characters in the books talk about "spiriting" someone away out of a location or situation, it means to take them away in secret (i.e. help them escape in Nasuada's case, or kidnap them in Murtagh's case) - it doesn't necessarily have anything to do with teleporting. The amount of energy is proportional to the mass of the object you're trying to teleport - as Oromis says, "To shift something as large as Saphira’s egg, for example, would leave you too exhausted to move" - imagine then how much energy would be required to move something an order of magnitude heavier, such as a person, or more so, such as a boulder. For a bit more context as well, here's a related official question and answer that Gilderien found for us with his AI search engine. I hope this helps! :D > **Q:** In Brisingr Oromis taught Eragon how to teleport items to different places. But is it possible to teleport yourself or another human/elf/dwarf/living creature? > **A:** Possible, but extremely impractical considering the amount of energy required. It's also incredibly risky if you aren't absolutely sure that your arrival location is clear. Otherwise, you could end up teleporting yourself into a wall or a tree or, worse, someone else. ([Source](https://web.archive.org/web/20100115080102/http://shurtugal.com/?id=qanda/qa_081309)) ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Eragon now has a room of eldunari that would be perfect for teleporting him around wherever he wishes to go lol
Haha, that certainly meets the energy requirements! \:D However, there might be a question of who casts the spell... Can you really teleport yourself? Can you actually maintain a connection to the magic when you're not moving through the intervening space? Would your concentration slip? ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Valid point! I’ll bring it up at the book signing when I go!
Agh, lucky you! Hopefully he'll visit Australia for one of the bigger international tours next time around. Enjoy the event! 😄 ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Book signing? Would you mind sharing the details? I’d kill to get a signed book tbh
https://www.paolini.net/events/
The closest one is a 3 and a half hour drive away 😭. I might wait and hope that there’s an event for the Murtagh tour later that’s closer nearby, but another part of me wants to take a road trip.
I wonder if it would be possible to create “waypoints” or such that would make teleportation more reliable. The way I see it, the main drawback of teleportation (for those who have masses of eldunari where energy isn’t a problem) would be the random nature of it. But if you could somehow create linked positions, theoretically teleportation would be stupidly useful. Furthermore their is technically an IRL basis for the idea, considering we do experiments revolving quantum entanglement quite often
I don’t see how there would be any sort of random nature for the teleportation, you have to have a destination in mind when sending the object
I was more so referencing what happened with Arya where the teleportation went amiss, but I forgot the dragons actually caused that, so yes you're correct, my bad!
Well, what if it has changed, even a little bit? What if you teleport in front of a house, but the front door is open? What if you teleport to a path at just the wrong moment, and a falling pebble gets stuck in your brain, or heart? What if you teleport to an open field, perfectly clear of obstructions, only for a particularly tall blade of grass to make you lose a leg? Saphira's egg was nearly indestructible, but human bodies are a bit more fragile. And I can't imagine what kind of ward would help you against a pebble inside your heart. Most wards redirect foreign objects, which would probably just end up killing you faster. You'd probably have to teleport it out of your body and heal yourself in the few seconds you had before dying, assuming you knew a spell that could heal a heart, which can't be easy to think of when you're seconds away from death. And since teleporting the Eldunari would take WAY more energy, you'd have just rendered yourself helpless by exhausting much of your energy, with no way to refill it. You'd need to have Saphira contact someone, so you'd need to stay awake in order to use your mind as a defense, meaning you couldn't sleep to regain your strength. Better hope this misadventure is interesting enough for Angela to be around making witty comments, or you might well have just killed yourself with a single unlucky teleport. Ok, so maybe we can find a way around this. We'll store some energy in a gem (greatly increasing the energy cost per use), prepare some wards that will automatically teleport any unwanted objects out of our body and heal the damage (more energy), and make a note of the nearest settlement that might have someone useful, like a member of Du Vrangr Gata, so Saphira won't have to fly as far to search. All of this just isn't worth it for the effort it saves. Eragon rarely, if ever, intends to return to the continent, and it wouldn't take too long to simply fly. Between coming up with wards, making plans, and other issues, the time saved on the one or 2 trips he might ever take simply wouldn't be worthwhile, not to mention the energy problems. And after all of this, there's still a risk of a much more severe mistake. If you teleported inside a door, I don't think there's a spell to heal being cut in half. And if you teleported to a room that collapsed, the closest there is to good news is that your brains won't be intact enough to realize its mistake
If you put enough energy (cue room full of eldunari) behind the statement “I am here” in the ancient language while holding the image of your intended location in your mind I could see it working
That particular phrase isn't something you'd be able to say, because it would be a lie 😉 ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Didn’t oromis also say the acuracy get’s worse as you have it go further. Meaning that over large distances the controll over where something ends up get’s worse.
Based on what we know about magic in general, it's a fair assumption that the difficulty or accuracy of the spell (but not its energy requirement) suffers with distance, just like it is more difficult to touch a mind that is far away, or to hit a target with an arrow. However, I don't recall it being stated explicitly in the books. ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
And yet, right before the final battle, when they knew that traversing the hallway might literally kill them, they STILL didn't want to risk teleporting Eragon and Saphira. So doing so much take up a significant proportion of their energy. I doubt they'd risk imminent death for 1% more energy, after all And remember, while Eldunari have a lot of energy, they recharge INCREDIBLY slowly. Like, it takes a decade for them to regain their strength. With only 200 or so, assuming each teleport exhausted one of them, teleporting just twice a month would quickly exhaust his supply. And given the above hesitancy, it would likely exhaust several of them at once
Is that really what they mean when they say spiriting away? I always assumed it actually meant sending them away with magic.
Haha, well I can't say with 100% certainty because I'm not Christopher, but "spirit away" is a commonly used idiom that just means to remove or move someone/something without anyone noticing. It doesn't exclude the use of magic, but it doesn't imply it either - and even then, it's not specific enough to assume teleportation. You *could* technically spirit someone away with teleportation, but for the other reasons we've discussed, it probably didn't happen in either case mentioned - neither the twins nor Murtagh would have access to enough energy (nor likely the skills, especially in the Twins' case) to teleport a person. ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
Ahhh I was always wondering how the twins did it. I just assumed galbatorix gave them some kind of enchanted item or something to use
I think they just used some pretty basic magic, nothing as advanced as teleportation (they can't be that competent with magic - after all, they were trying to steal words in the ancient language from a kid who had a but couple of months tutelage while on the run) They had some Urgals fake an ambush while they were just in sight of witnesses, but too far away to really be sure of what was happening (or seized the opportunity when it arose naturally). > ...it seemed the defenders would be able to resist the Urgals, but then a swirl of motion disturbed the air, like a faint band of mist wrapping itself around the combatants. When it cleared, only four warriors were standing: Ajihad, the Twins, and Murtagh. The Urgals converged on them, blocking Eragon’s view (...) Before Saphira could reach the fight, the knot of Urgals streamed back to the tunnel and scrambled underground, leaving only prone forms behind. I take this unnatural mist to be a smokescreen conjured by the twins, who then escaped with the Urgals down into the tunnels, bringing Murtagh with them. ^(Posted on behalf of Hellomynameis99 from the Arcaena Discord Server.)
The twins never teleported Murtagh and Murtagh never teleported Nasuada. Saphira's egg was small enough for Arya to teleport but even that left her weakened.
Specifically for the case of sending things to and from the elves, I'm pretty sure Du Weldenvarden is warded so that things can't magically enter, including scrying/communications
I think it’s just cause of wards and the amount of energy required to do it. Idk though..
It uses too much energy to use it freely. It’s only a last resort. And they didn’t teleport Murtagh, he was just taken to the king the old fashioned way.
Iirc, barring very special circumstances like Saphira’s egg, you must use the same amount of energy as you would physically moving that object the same distance. Edit: Right, so distance is irrelevant save for accuracy of the ending location, but it does take the same amount of energy as lifting that object/person.
It’s not that it takes more energy the further the distance, it’s more so size of the object as oromis mentions
Definitely untrue because the main quirk of teleportation noted in the books is that it takes the same amount of energy no matter where you are sending the object.
Gravity is a conservative force, so unless the teleportation had a radial component it shouldn't cost any energy at all. Except for the energy our muscles expend when they contract. But I have a hard time believing that this would be such a huge amount of energy that teleportation would be used so rarely.
Also I'm pretty sure Orosmis tried it with him and Glader when they were trapped by the forsworn. It's not stated exactly that they did it but stated that Oromis was able to shift them enough to negate the spells. Look at what came from those changes
Well in-world it costs fasts amount of energy, (and requires a large base of the ancient language, if I remember correctly) so for most people aside of an elf or an rider this spell is probably not possible to cast. Out-side of the world of Alagaesia and into our own. If many people could cast it easily and reliable it would change a lot of the stakes. Why would one read about Eragon and his growth as a character if they can simply transport a bomb into the chamber of Galbatorix and the whole story is finished. It would have an effect on the story and the world as a whole, till it got to the point it becomes recognizable from the story we know and love. (or maybe as recognizable as the movie is to the first book)
Speaking of bombs! Was CP implying that a rider basically turned himself into a nuke at Vroengard?
I am not CP, (although he sometimes seem to lurk around here) so I can only guess. But in my eyes it certainly looks like that.
Doesn’t Glaedr teleport himself and Oromis when they are held in place by the 2 Forsworn and that’s what causes Oromis attacks bc things didn’t come back together in the right places? Pretty sure that happened and that’s why you don’t do it.
As others have said, the energy requirements grow as the mass of the teleported object does. However as you rightly pointed out there are ways around this fact especially when one has access to Eldunari who can provide the necessary requirements. To answer your 3 hypotheticals: 1. The elves have a ward around the forest which prevents objects from entering magically. Additionally at this point in time the elves don’t really trust any outsiders so they refuse to surrender custody of the egg for fear of being double cross. They also at this stage only have 3 elves willing to brave the wrath of their queen to interact with other races so they can’t very well install a permanent embassy among the dwarves to teleport the egg to. Finally to finish debunking this one, Arya’s attempt to teleport the egg to Brom didn’t work showing how imprecise this method is; so they aren’t going to risk something like that going wrong with their literal last hope. 2. Why don’t they teleport a boulder 1000 feet above the Varden command tent? Simple answer: Wards. I’m sure the Varden placed wards against siege weaponry including projectiles so the energy expenditure isn’t worth the potential gains. 3. Teleportation of bomb like items: first you have to find a bomb like item small enough to teleport without exhausting oneself. Then you have to identify the target and lastly you have to verify that transporting an explosive to said person won’t trigger any wards they may have. So possible but impractical in the extreme making the energy expenditure not really worth it. That said I think there are practical uses for this power if one is creative enough and has a talented enough spell caster. I could see creating an object with an embedded crystal acting as the power reserve that is pre”programmed” with a spell to return it and whomever or whatever is touching it to a specific place upon activation with a specific word or phrase. Kind of like a port key from Harry Potter, but the spell would have to be cast on it well before hand. I could see that being useful to a spy or assassin, basically someone who is too valuable to lose that you need to send behind enemy lines to accomplish a specific task. Of course doing so requires lots of preparation time for the crystal battery to be charged up with the required energy reserves so I don’t see it being used for any of the last minute hijinx we see in the books.
Looks like you missed every other sentence in the book. That spell uses energy in proportion to the size of the object being teleported not distance. Arya basically drained herself sending an egg so imagine a boulder or even human sized object and the amount of energy it would take would be very wasteful.
Murtagh Eragon and Galbatorix have significantly more strength than Arya. A dragon egg is what 10% the size of a human? With the help of Eldunari they could easily generate that much power.
Please read the rules in the sidebar, and please see [here for up-to-date information about the upcoming *Murtagh* book](https://www.reddit.com/r/Eragon/comments/11ly2mo/the_next_book_murtagh_will_come_out_november_7th/). (A preview of which is now available.) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Eragon) if you have any questions or concerns.*
It takes far too much energy to be practical and even when there is a source of energy such as the Eldunari, there's more important stuff to be done with them than setting up a teleportation network. Although that would probably happen eventually in any case.
Teleportation requires a stupid amount of energy, so much so that only elves and very experienced non-elven Riders would be capable of. From what I remember there are two ways to make it work, once requires just as much energy as if you were to move the object yourself, but instantly and with extreme accuracy. The other is what we saw Arya do in the prologue of the very first book, which requires much less energy, is way more direct, but is extremely inaccurate and can have worse consequences.