Montmartre, Paris. In a world where human civilization verges on extinction and rats are about to take over the world, two extraordinary cats, Bastet and Pythagoras, meet, fall in love and endeavor to save humanity. Among the masters of French fantasy and science fiction, Bernard Werber has had his work translated worldwide. His latest social science fiction trilogy, Cats, raises sharp questions about the evolution of humankind, good and evil, and relationships between species.