Teleportation circles. With a name self-explanatory enough, it could teleport someone to another place within seconds, using the law of space and a formation circle as the medium.

This had been built by a high-level cultivator, one that expertise specifically in the law of space.

This was an extremely valuable product within the cultivation field, a feat so incredible that the average person would never achieve.

They really didn’t expect anyone to be hiding in the Hell Fish cave at the botto