While working for a mysterious financial consulting firm that offers insurance to corporations against impending catastrophic events, a gifted young mathematician becomes increasingly obsessed with doomsday scenarios until one of his actual worst-case scenarios unfolds in Manhattan.

"One of the most original, dazzling, and critically acclaimed debut novels this year. In this debut novel, hailed by Stephen King as ?terrifying, touching, and wildly funny,? the stories of two strangers, Eugene Brentani and Mr. Schmitz, interweave. What unfolds is a bold reinvention of storytelling in which Eugene, a devotee of the reclusive and monstrous author, Constance Eakins, and Mr. Schmitz, who has been receiving ominous letters from an old...