Kaththea the Sorceress called forth a power such as no longer existed on the distant planet known as the Witch World. It was a power so great that it could destroy all that she loved best – and might even prove to be a greater evil than the shadow itself.
Yet there could be no other choice for Kaththea than to call on Hilarion in the death-naming. For she was a witch deprived of power and she needed a guide to regain her lost skills and her lost world. There was only this ancient one, the opener of gates, with force mighty enough...
Andre Alice Norton (1912-2005) was an American science fiction and fantasy author (with some works of historical fiction and contemporary fiction) under the noms de plume Andre Norton, Andrew North and Allen Weston. Norton published her first novel in 1934, and was the first woman to receive the Gandalf Grand Master Award from the World Science Fiction Society in 1977, and won the Damon Knight Memorial Grand Master Award from the Science Fiction and Fantasy Writers of America (SFWA) association in 1983.
Andre Norton. Wikipedia.