A lonely telepath named Tarquin offers to help find the Xindi if Sato stays with him on his isolated world.
Sato is contacted telepathically by Tarquin, a lonely telepath who lives on an isolated world. He offers to help find the Xindi if the crew brings him a Xindi object to read, but he insists that Sato stay with him while he works.
While Enterprise investigates another sphere, Sato discovers that Tarquin has brought companions here before, four of whom lie buried outside. She threatens a device that enhances his powers, and he lets her go, giving the crew coordinates of a Xindi colony. T'Pol learns there are at least fifty spheres. The episode was directed by Roxann Dawson and written by Phyllis Strong.