* Fast paced and thoroughly engrossing, the 650-plus pages fly by, challenging readers to care about and grasp sophisticated, confusing, and captivating ideas. -- Booklist , starred review Card entwines two stories in this fascinatingly complex series opener....The result is an amalgamation of adventure, politics, and time travel that invokes issues of class and the right to control one's own life. Yet despite its complexity, the book is never less than page-turning. While Card delves deeply into his story's knotted twists and turns, readers should have no trouble following the philosophical and scientific mysteries, which the characters are parsing right along with them. An epic in the best sense. -- PW , starred review The implications of the boys' power to manipulate the past unfold cleverly..., feeding into the Machiavellian political intrigue for a pulse-pounding climax....Card's many fans will be thrilled by this return to his literary roots. -- Kirkus