The Fall of Colossus
Dennis Feltham Jones
 Five years have passed since the computer known as Colossus used its control over the world's nuclear deterrent to take control of humanity. Superseded by an even more advanced successor system built on the Isle of Wight, it has abolished war and poverty throughout the world. National competition and most sports have been replaced by the Sea War Game, where replicas of World War I dreadnoughts battle each other for viewing audiences. A group known as the Sect, which worships Colossus as a god, is growing in numbers and influence. Yet despite the seeming omnipresence of Colossus' secret police and the penalty of decapitation for anti-Colossus activities, a secret Fellowship exists that is dedicated to the computer's destruction. Charles Forbin, the former head of the design team that built and activated the original Colossus, now lives on the Isle of Wight with his wife and son, serving the computer as Director of Staff. Though contemptuous of the growing cult of personality around Colossus, he has reconciled himself to Colossus' rule. His wife Cleo, however, loathes Colossus and is a member of the Fellowship. One afternoon while taking her son to a secluded beach, she receives a radio transmission from the planet Mars. Identifying Cleo as a member of the Fellowship, the transmission offers help to destroy Colossus and asks her to return to the same spot the next day for further instructions. She returns with Edward Blake, Colossus' Director of Input and the head of the Fellowship. Together they receive instructions to obtain a circuit diagram of one of Colossus' input terminals and a sample of the information fed into it, along with instructions to proceed to two locations&nbsp;— one in St. John's, Newfoundland, the other in New York's Central Park&nbsp;— to receive further transmissions. Though Blake passes the necessary information along to Cleo, she is quickly arrested by the Sect and sentenced by Colossus to spend three months at an "Emotional Study Center" where she is repeatedly raped as part of an experiment designed to help Colossus better understand human emotion. Now under suspicion, Blake approaches Forbin, who is devastated by his wife's arrest. Explaining the details of their plot, Blake convinces Forbin to help after explaining the details of Cleo's captivity. Forbin travels in disguise with the requested information, first to St. John's, then to New York City, where he receives an incomprehensible mathematical problem that the transmission claims will destroy Colossus once it is fed into the computer. Upon his return, Forbin slips the problem to Blake, who enters it into Colossus. While Forbin converses with the computer, Colossus begins to make verbal errors, then stops. Increasingly erratic, it attempts to warn Forbin of a threat from space that it was preparing to meet but breaks down before it can complete the message. Now free of Colossus' rule, Blake moves to seize power, using the automated fleets of the Sea War Games to threaten the world's capitals. As Blake gloats, Forbin tells him of Colossus' warning. Requesting any reports of unusual astronomical activity, they learn that two contacts have been detected leaving Martian orbit and heading towards the Earth. The novel ends with the two men hearing a radio transmission repeating, "Forbin, we are coming."