Pendergast-the world's most enigmatic FBI Special Agent-returns to New York City to investigate a murderous cult.

William Smithback, a New York Times reporter, and his wife Nora Kelly, a Museum of Natural History archaeologist, are brutally attacked in their apartment on Manhattan 's Upper West Side . Eyewitnesses claim, and the security camera confirms, that the assailant was their strange, sinister neighbor-a man who, by all reports, was already dead and buried weeks earlier. While Captain Laura Hayward leads the official investigation, Pendergast and Lieutenant Vincent D'Agosta undertake their own private-and decidedly unorthodox-quest for the truth. Their serpentine journey takes them to an enclave of Manhattan they never imagined could exist: a secretive, reclusive cult of Obeah and vodou which no outsiders have ever survived.