A riveting new science fiction novel from the writer who twice won the Philip K. Dick Award for best SF novel. Bela and Paul, two wild young mathematicians, are friends and roommates, and in love with the same woman, who happens to be Alma, Bela's girlfriend. They fight it out by changing reality using cutting edge math, to change who gets the girl. The contemporary world they live in is not quite this one, but much like Berkeley, California, and the two graduate students are trying to finish their degrees and get jobs. It doesn't help that their unpredictable advisor Roland is a mad mathematical genius who has figured out a way to predict isolated and specific bits of the future that can cause a lot of trouble. . .and he's starting to see monsters in mirrors. Bela and Paul start to mess around with reality, and when that happens, all heaven and hell break loose. Those monsters of Roland's were really there, but who are they? This novel is a romantic comedy with a whole corkscrew of SF twists.