In this volume: Chessboard Planet: Robert Cameron is going mad...As head of US Psychometrics he has to defeat the European Falangists' assault on the sanity of Western scientists before society collapses. The Falange have attacked with weapons which are scientifically impossible - but which work. And just examining their basic principles drives scientists mad. For the principles change..and change...and change again - as though an unseen Grandmaster is continually changing the rules of a chess game where freedom is at stake. Only someone capable of thinking clearly in his nightmares can help - and help must come soon...Camouflage:A group of criminals seek escape by hiding in the Asteroid Belt. Needing nuclear power, they hi-jack a space freighter. What they don't know is that a Transplant - Bart Quentin, a man without a body, a living brain - is integrated into the electronic circuits and is in command of the ship. The criminals don't know where he is - but he knows where they are... Android:Androids were obviously not human - so they claimed. Bradley, having murdered his boss, the Director of New Products Inc, had left the man's body in one corner of the room and his head in another. But here is his boss - obviously in one piece and obviously alive. Could he be - a - robot? Or worse - is there a conspiracy of robots who plot to take over the human race? Or Else: Two men, fighting over a small water hole in a desert and ready to fight to the death, experience a visitation from an alien. They are to cease hostilities - or else...