Code of the Lifemaker

Thirg, the notorious philosopher, knows there are alien beings on other worlds on the other side of the sky. When aliens do arrive, Thirg's heretical and dangerous beliefs are vindicated. But the strange creatures called human plan to exploit his planet's resources. Only one human, Karl Zambendorf, can stop his fellow Terrans from enslaving Thirg's people. Too bad Zambendorf is a con man.