For centuries, adherents of the world's religions have had plenty of fiction to enjoy. Pick up any holy book, and you'll find an entertaining collection of silly fantasies-yet millions of people believe them and base their entire lives around them. It would be funny if the world weren't run, and constantly imperiled, by these religions-as it has been since man first made up stories to explain the unexplainable. Now comes Atheist Tales, a collection of speculative-fiction stories with themes to appeal to the disbeliever. After all, if the religious folks can have their books of fairy tales,...