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From the acclaimed author of A Cosmology of Monsters ("I loved it" —Stephen King) comes an epic contemporary fantasy, a mixture of The Magicians and It: a story of dark magic, terrible mistakes, and second chances.

"You can never go home again," the saying goes—but Hal, Athena, and Erin have to. In high school, the three were students of the eccentric Professor Marsh, trained in a secret system of magic known as the Dissonance, which is built around harnessing negative emotions: alienation, anger, pain. Then, twenty years ago, something happened that shattered their coven, scattering them across the country, stuck in mundane lives, alone.
      But now, terrifying signs and portents (not to mention a pointed Facebook invite) have summoned them back to Clegg, Texas. There, their paths will collide with that of Owen, a closeted teenager from Alabama whose aborted cemetery seance with his crush summoned something far worse: a murderous entity whose desperate, driving purpose includes kidnapping Owen to serve as its Renfield. As Owen tries to outwit his new master, and Hal, Athena, and Erin reckon with how the choices they made as teens might connect to the apocalyptic event unfurling over the Lone Star State, shocking alliances form, old and new romances brew, and three unsuccessful adults and one frightened teen are all that stand between reality and oblivion. 
      From one of the boldest, most brilliant voices in modern fantastical horror, The Dissonance is a thrilling and beautifully written story of magic and monsters, forgiveness and friendship.