Robert Stone's remarkable new novel is a psychological thriller of razor-sharp intensity: mysterious, erotic, and deeply readable. Michael Ahearn, a professor at a rural college, sheds his comfortable assumptions when he becomes obsessed with a new faculty member from the Caribbean, Lara Purcell. An expert in Third World politics, Lara is seductive, dangerous -- and in thrall, she claims, to a voodoo spirit who has taken possession of her soul. Impassioned...