The Cloud of Unknowing

David Sears grew up in the shadow of his brilliant sister, Diana, convinced by their father that she would accomplish great things. Instead, she married and had a son, Jason, wholike David and Dianas fatheris schizophrenic. Her husband, Mark, a geneticist, never made peace with Jasons condition. Perhaps this is why Diana will not accept the authorities conclusion that Jasons drowning death was accidental. Or perhaps Diana is going mad. As she builds a case against her husband and the seductive qualities of her manic energy become impossible to ignore, David finds himself afraid for his own familys safety. In The Cloud of Unknowing, Cook explores the power of blood and family mythology.

Thomas H. Cook is the author of nineteen 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 a Barry and a Duncan Lawrie Dagger. His novel The Chatham School Affair won the Edgar for Best Novel. He lives in New York City and Cape Cod.