Detective Isaac Bell engages in his most dangerous case yet when he must intervene with a violent-tempered husband on a quest for vengeance. Josephine Frost is competing to win $50,000 by flying across America in less than fifty days. Her husband, Harry, has already killed her lover, and he's tried to kill her, too, but failed. Bell must stop him before he tries again. This is the latest Isaac Bell novel by Clive Cussler, the New York Times bestselling author of The Spy.