Taemon lives in a world run by psi. Psi, as he once thought, was simply a telekinetic power. But Taemon can mind wander, a different form of psi. and learn things like how to get oxygen out of the water. when he refuses to kill his later evil brother, he loses his psi and goes to the powerless colony. there he learns how evil and corrupted his world is, and that hes brother is to be sacrificed.