From New York Times bestselling author of the Adam Dalgleish mystery series comes a "flawlessly crafted...profoundly, masterfully moving" (Cosmopolitan) standalone crime novel that is "the peak of the art" (London Times). Adopted as a child into a privileged family, Philippa Palfrey fantasizes that she is the daughter of an aristocrat and a parlor maid. The terrifying truth about her parents and a long-ago murder is only the first in a series of shocking betrayals. Philippa quickly learns that those who delve into the secrets of the past must be on guard when long-buried horrors begin to stir.