Poul Anderson (1926-2001) was a science fiction writer who was admired for his hard science fiction, mysteries, historical novels, and 'fantasy with rivets.' Besides winning the Hugo and Nebula Awards, he received the Gandalf, Seiun, and Strannik Awards, and was inducted into the Science Fiction and Fantasy Hall of Fame.
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Forget minor hazards like nuclear bombs. The discovery of time travel means that everything we know, anyone we know, might not only vanish, but never even have existed. Against that possibility stand the men and women of the Time Patrol, dedicated to pres... SEE MORE