In this young adult time-travel adventure, nineteen-year-old Kaelen knows his father has built something extraordinary: a machine capable of traveling through time. What he doesn’t know is the real reason behind it. Haunted by the collapse of his marriage and the family he once had, Dorian believes the past may hold something the present cannot—a chance to find where everything went wrong and somehow make it right.

But when a test of the machine goes wildly off course, father and son are torn from modern America and stranded in ancient Africa. Getting home is only the beginning—and with every timeline crossed, Kaelen moves deeper into a mystery involving his own beginnings and forces he does not yet understand.