Once a promising Midwestern football star, Mike Brink was transformed by a traumatic brain injury that caused a rare medical condition: acquired savant syndrome. The injury left him with a mental superpower. But it also left him deeply isolated, unable to fully connect with other people. Everything changes after Brink meets Jess Price, a woman serving thirty years in prison for murder who hasn’t spoken a word since her arrest five years before. When Price draws a perplexing puzzle, her psychiatrist believes it will explain her crime and calls Brink to solve it. What begins as a desire to crack an alluring cipher quickly morphs into an obsession with Price herself. She soon reveals that there is something more urgent, and more dangerous, behind her silence. The quest takes Brink through a series of interlocking enigmas, but the heart of the mystery is the God Puzzle, a cryptic ancient prayer circle created by the thirteenth-century Jewish mystic Abraham Abulafia.