The traveler sped through Eli Teague’s life long ago. With her tricorne hat, flintlock rifle, and steampunked Model-A Ford, she was a living anachronism, and an irresistible mystery. So when Eli sees her again, he’s determined that this time, he’s going to get some answers. But his hunt soon yields far more than he bargained for. To make sense of the secret at its heart, he must embark on a breakneck chase across the country and through two centuries of history—with nothing less than America’s past, present, and future at stake.