An alien scientist invents the Intergalactic Inversion Drive, an engine system that transcends warp drive -- and the U.S.S Enterprise will be the first to test it! The Klingons attempt to thwart the test, but a greater danger looms when strange symptoms surface among the crew -- and time becomes meaningless. Now Captain Kirk and his friends face their greatest challenge -- to repair the fabric of the Universe before time is lost forever!
Diane Duane is the author of The Door Into Fire, which was nominated for the World Science Fiction Society’s John W. Campbell Award for best new science fiction/fantasy writer two years in a row. Duane has also published more than thirty novels, numerous short stories, and various comics and computer games, several of which appeared on the New York Times bestseller list. She is best known for her continuing Young Wizards series of young adult fantasy novels about the New York–based teenage wizards Nita Callahan and Kit Rodriguez. The 1983 novel So You Want to Be a Wizard and its six sequels have been published in seven other languages, and are now routinely cited by librarians all over the US as “the books to read when you run out of Harry Potter.”