From the New York Times bestselling author of the Atlantis, Area 51, Green Beret and Nightstalker series comes a thrilling ride through history that has been called "Quantum Leap on steroids " What does it take to change history and destroy our reality? Change events on the same date, 22 September, in six different years. The Time Patrol must send an agent back to each day, with just 24 hours for each to defeat the Shadow's plan to disrupt...