Peter Lerangis, the New York Times bestselling author of the Seven Wonders and Max Tilt series, returns with the last installment of his electrifying trilogy about a boy who discovers that he can alter the course of history. Thirteen-year-old Corey Fletcher is the world's first Throwback. He has the power to not only to travel back in time, but to change the past. It's a power that comes with no small amount of responsibility--but...