About the Author

THOMAS H. COOK is the author of twenty-one novels and two works of nonfiction. He has been nominated for the Edgar Award seven times in five different categories, including Best Novel for Red Leaves, which was also nominated for the British Crime Writers' Association's Duncan Lawrie Dagger and won the Barry for Best Novel. The Chatham School Affair won the Edgar for Best Novel. He lives in New York City and Cape Cod.

Reviews

PRAISE FOR THE CLOUD OF UNKNOWING "[Diana's] inexorable descent into mania, narrated by her brother Dave, is as gripping as the mystery itself. A-."--Entertainment Weekly "Piercing . . . Consuming suspense almost too concentrated to bear."--New York Daily News --