"Lucy Campion, a ladies' maid turned printer's apprentice in 17th-century London, is crossing Holborn Bridge over the most vile portion of the River Fleet one morning when she encounters a distraught young woman, barely able to speak and clad only in a blood-spattered nightdress. The woman has no memory of who she is or what's happened to her, and the townspeople believe she's possessed. But Lucy is concerned for the woman's well-being and takes her to a physician. When, shockingly, the woman is identified as the daughter of a nobleman, Lucy is asked to temporarily give up her bookselling duties to discreetly serve as the woman's companion while she remains under the physician's care. As the woman slowly recovers, she begins-with Lucy's help-to reconstruct the terrible events that led her to Holborn Bridge that morning. But when it becomes clear the woman's safety might still be at risk, Lucy becomes unwillingly privy to a plot with far-reaching social implications, and she'll have to decide how far she's willing to go to protect the young woman in her care"--