The story is about a boy living in a society where those with mental powers are in control and can pilot between the stars. He's supposedly born to powerless parents, but discovers he has mental powers greater than anyone he has met.
When discovered and confronted by a man, the boy accidentally kills him by shooting a pebble he was holding into the man's chest. Later, the boy participates in a mental battle where the winner is the one who can hold the greatest number of objects in the air, and then attack with an object that the loser couldn't hold.
The boy uses a piece of wire stretched taut and strengthened by his mind to slice slabs of granite, and then levitates the slabs to create a house. The boy also can fly over ground and "see" gold and other precious elements in the ground, and mentally extract them from the ground to gather and sell.