AN AWARD-WINNING YA BESTSELLER-WINNER OF MULTIPLE INTERNATIONAL PRIZES. Time isn't a place you visit. It's a system that watches you-and it knows how to strike back. When George Petit returns to his grandfather Jules De Montagny's house, he finds a hidden laboratory, an impossible machine... and an ancient leather-bound book sealed with a seven-pointed star. At its heart pulses the Gláin Crystal: pure energy powerful enough to bend reality.With Victor Marne, a physics prodigy, and Lavigne Croisson, a fearless pragmatist, George takes the first jump. But every change has a price: the present can poison the past-and when time is forced, the Envoys arrive, the system's inevitable response.Then the unthinkable happens. Time corrects.And what you love can be erased as if it never existed.The Gláin Saga begins.