Intruso (Tombooktu Asimov) (Spanish Edition) Spanish edition

Derec Avery has finally returned to the original Robot City, to discover that it has been reprogrammed in such a manner that it is devoid of any sense. Along with his companion Ariel and his father, he must find and defeat the all-seeing Eye, the strange force that has weakened the design of the city. Can they resolve the new mystery of Robot City before the robotic city collapses into its surroundings?