Robert Silverberg - The Land Of The Living

 The warrior-king Gilgamesh—part man, part god—is not only larger than life; he is larger than death. Trapped in the Afterworld, a bizarre reality in which everyone who has ever died lives again . . . only to die again and again in endless succession, Gilgamesh sets out to find his lost friend Enkidu and fight his way back to the land of the living. Along the way, he encounters a rogue’s gallery of figures from history, literature, and myth—including H. P. Lovecraft and Robert E. Howard—and travels from the ancient city of Uruk to modern-day Manhattan. But the Afterworld is not so easily escaped.