A Darkness at Sethanon is the third and final book in The Riftwar Saga. It details how Murmandamus, a new prince of the Dark Brotherhood, marshals the forces of the Moredhel and invades the kingdom, with the intent of finding the Lifestone, a powerful relic with which he will be able to destroy every living thing in the world, so as to resurrect the Valheru Lords of old. Only Pug and Tomas can stop this new evil, thereby ending the Riftwar.

Raymond E. Feist was born in 1945 in Los Angeles, and was raised in Southern California. He was born with the name Raymond E. Gonzales III, but took his adoptive step-fathers surname Felix E. Feist when his mother remarried.[2] . He graduated with a B.A. in Communication Arts with Honors in 1977 from the University of California at San Diego. During that year Feist had some ideas for a novel about a boy who would be a magician. He wrote the novel two years later, and it was published in 1982 by Doubleday. Feist currently lives in San Diego with his children, where he collects fine wine, DVDs, and books on a variety of topics of personal interest: wine, biographies, history, and, especially, the history of American Professional Football