Xaraf Firebridge tumbled a million years into the future - to find Earth ruled by beings who could play with the fabric of space and time as if they were gods. Yet somewhere in the distant past, something they had done went terribly wrong...
Now, in the shadow of Earth's dying sun, Xaraf is sent forth on a perilous quest to preserve the course of history. Accompanied by the wondrous sword Alamogordo and the woman warrior Glade, he seeks the legendary city of Treet Hoown. There, he must confront the most destructive machines of a long-dead civilization ... and a destiny undreamed of by man or god.
A shorter version of the novel was published as Sorcerer's World (1970).
Original title: The Black Grail
Genre: Fiction→ Science Fiction→ World Versions→ Time Travel