Enterprise Stardust

Major Perry Rhodan, commander of the spaceship STARDUST, found more than anyone had expected might exist on the moon — for he became the first man to make contact with another sentient race!

The Arkonides had come from a distant star, and they possessed a knowledge of science and philosophy that dwarfed mankind's knowledge.

But these enormously powerful alien beings refused to cooperate with the people of Earth . . . unless Perry Rhodan could pass the most difficult test any human being had ever faced . . . .