The aliens from Agoyo came to Earth and left just as suddenly. But the curiosity of both races begins an experiment on hybridization. The product of their experiment, Povi Sewin Agoyo, unaware of his dual nature, struggles to understand why he is different. Most hybrids are born sterile to protect them from coompeting chemistries. At maturity Povi is fertile, thereby doomed by his duality to die. Unlike animals, Povi is sentient, knowing he will die if he produces an heir. Because of his position as religious God-head, he is forced to reproduce to continue the line. His choices as to whom he will choose and when, become life and death decisions. All these choices will affect three worlds forever.