"Weaves a spell of darkness that’s mysterious and magical, and binds it with a knot of deathless love." —New York Times bestselling author Susanna Kearsley on A Lullaby for Witches

In post–World War I England, a young woman inherits a mysterious library and must untangle its powerful secrets…

With the stroke of a pen, twenty-three-year-old Ivy Radcliffe becomes Lady Hayworth, owner of a sprawling estate on the Yorkshire moors. Ivy has never heard of Blackwood Abbey, or of the ancient bloodline from which she’s descended. With nothing to keep her in London since losing her brother in the Great War, she warily makes her way to her new home.

The abbey is foreboding, the servants reserved and suspicious. But there is a treasure waiting behind locked doors: a magnificent library. Despite cryptic warnings from the staff, Ivy feels irresistibly drawn to its dusty shelves, where familiar works mingle with strange, esoteric texts. And she senses something else in the library too, a presence that seems to have a will of its own.