Master of the Revels (D.O.D.O. Book 2)

Details: This fast-paced sequel to the New York Times bestselling near-future adventure The Rise and Fall of D.O.D.O. picks up where the original left off, as Tristan, Mel, and their fellow outcasts from the Department of Diachronic Operations (D.O.D.O.) fight to stop the powerful Irish witch Gráinne from using time travel to reverse the evolution of all modern technology.