Dr. Lucy Stannis, chief biologist in the peaceful human colony, is thrilled when a shipload of aliens arrives on Eden. The alien Atrapako have spiky crests, sharp claws, and scales of four colors covering massive humanoid bodies. Lucy befriends the captain of the alien spaceship, the impressive Blue, Sa Kamizan Veedak. But, appearances are deceptive and conflict is inevitable. Lucy races to discover the secret of the aliens before the colony is destroyed. .