On the Rim of the Mandala — Paul Cook

Lou Colleran is an immortal. But even immortals can be killed. *** For the universe is being threatened by genetically designed creatures called calibans. And the only thing between them and the destruction of the worlds of the Mandala is Lou Colleran. *** But can Lou Colleran, an immortal haunted by a woman dead hundreds of years, and preoccupied by seductive dreams, survive long enough to save the universe from destruction? ***