When Melisande Stokes, an expert in linguistics and languages, accidently meets military intelligence operator Tristan Lyons in a hallway at Harvard University, it is the beginning of a chain of events that will alter their lives and human history itself. Tristan needs Mel to translate some very old documents, which, if authentic, are earth-shattering. They prove that magic actually existed and was practiced for centuries. Something about the modern world "jams" the "frequencies" used by magic, and it's up to Tristan to find out why. And so the Department of Diachronic Operations (D.O.D.O.) gets cracking on its real mission: to develop a device that can bring magic back and send Diachronic Operatives back in time to keep it alive. Bestseller. 2017.