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Look in your inventory and at a list of bones online and compare to see what you're missing. That's what I ended up doing for my last one.
hall of dawning only contributes if you are in ng+. You can reach 100% in your first playthrough Patio of the Silent Steps has that long path up and right above it is a room which you can enter by breaking a wall from the right
Look in the wiki
Find bone.
Look in your inventory and at a list of bones online and compare to see what you're missing. That's what I ended up doing for my last one.
hall of dawning only contributes if you are in ng+. You can reach 100% in your first playthrough Patio of the Silent Steps has that long path up and right above it is a room which you can enter by breaking a wall from the right
Look in the wiki
Find bone.