Armchair Fiction presents extra large editions of classic science fiction double novels. The first novel is "Cosmic Kill" by science fiction maestro Robert Silverberg. When Intelligence assigned Lon Archman to assassinate one of the most powerful men in the Solar System, Archman knew there was little chance of his coming back alive. The evil lord Darrien had established a foothold on Mars and was firmly in control of the Martian city, Canalopolis...