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When Robert Wolff finds a strange horn he has the key to the door between universes. A door through space-time leading to a space unlike ours, built on tiers, where he has to work his way up to find out who created it.
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Cool, unpretentious, epic and plot-driven.
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On Open Library, 5 have read it and 15 want to.
**Philip José Farmer** was an American author, principally known for his award-winning science fiction and fantasy novels and short stories. Farmer is best known for his sequences of novel — especially the World of Tiers (1965–93) and Riverworld (1971–83) series. He is noted for the pioneering use of sexual and religious themes in his work, his fascination for — and reworking of — the lore of celebrated pulp heroes, and occasional tongue-in-cheek pseudonymous works written as if by fictional characters. Philip José Farmer is also well known for remixing classic fictional characters, worlds, and both real and fake authors. This is epitomized with his Wold Newton family group of books that tie
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