Thomas Burnett Swann was a brilliant fantasy writer who died in 1976. He wrote primarily about the ancient Greek and Roman world, blending myth with romance and adventure. A reviewer in the Village Voice sums his work up well: "Swann's neo-romantic fantasies of the past are unique. He uses the stuff of myth but with twists and inventions of his own."
In this tale of the time of Rome and the Celtic kingdoms, Swann tells the story of the retreat of the pagan gods and all their array of sprites and nymphs and little folk. Facing the ruthless practicality of the new religion that denies their very right to exist, the varied prehumans face utter destruction unless they can find a sanctuary beyond detection. This short novel tells their tale and that of two of their defenders, who follow the trail of the legendary immortals to the very waters of the Styx. It is a masterpiece of poetic imagery, fantastic adventure, and sheer literary delight.