From one of the most critically acclaimed and well-loved authors of contemporary science fiction, a highly imaginative and exciting story as only David Brin can write . . .  "High spirits and inventiveness . . . Dennis's adventures, which can only be called rollicking, are legion."--Isaac Asimov's Science Fiction Magazine Physicist Dennis Nuel was the first human to probe the strange realms called anomaly worlds--alternate universes where the laws of science were unpredictably changed. But the world Dennis discovered seemed almost like our own--with one perplexing difference. To his astonishment, he was hailed as a wizard and found himself fighting beside a beautiful woman with strange powers against a mysterious warlord as he struggled to solve the riddle of this baffling world. "A delightful, often very witty story, with the underlying thoughtfulness we expect from David Brin."--Poul Anderson