From back cover: Perry Rhodan, the dynamic leader of the Third Power, had managed with the aid of extraterrestrial super-science to unify the warring factions of Earth. Humankind now stood at the beginning of its greatest Golden Age. But suddenly there came a new enemy, an alien force that had only one aim -- to destroy all other intelligent life in the universe. Their most terrible weapon was the frightening ability to take over human bodies with their minds, while imprisoning the human minds within their own monstrous insect-like bodies. No beings in the galaxy had ever managed to survive against these insidious creatures. Could Perry Rhodan, even with a united Earth behind him, hope to withstand their assault?