A New York Times bestseller! “A bewitching gem...I absolutely loved every moment of this story.” —Stephanie Garber, #1 New York Times bestselling author of the Caraval series “If you loved the Hogwarts Library…you’ll be right at home at Summershall.” —Katherine Arden, New York Times bestselling author of The Bear and the Nightingale From the New York Times bestselling author of An Enchantment of Ravens comes an “enthralling adventure” (Kirkus Reviews, starred review) about an apprentice at a magical library who must battle a powerful sorcerer to save her kingdom. All sorcerers are evil. Elisabeth has known that as long as she has known anything. Raised as a foundling in one of Austermeer’s Great Libraries, Elisabeth has grown up among the tools of sorcery—magical grimoires that whisper on shelves and rattle beneath iron chains. If provoked, they transform into grotesque monsters of ink and leather. Then an act of sabotage releases the library’s most dangerous grimoire, and Elisabeth is implicated in the crime. With no one to turn to but her sworn enemy, the sorcerer Nathaniel Thorn, and his mysterious demonic servant, she finds herself entangled in a centuries-old conspiracy. Not only could the Great Libraries go up in flames, but the world along with them. As her alliance with Nathaniel grows stronger, Elisabeth starts to question everything she’s been taught—about sorcerers, about the libraries she loves, even about herself. For Elisabeth has a power she has never guessed, and a future she could never have imagined.

When her convent is attacked by possessed soldiers, Artemisia defends the Gray Sisters by awakening the revenant bound to a saint's relic, even though she runs the risk of being possessed permanently by the powerful ancient spirit.

An international bestseller! From the New York Times bestselling author of Sorcery of Thorns and An Enchantment of Ravens comes a thrilling, “dark coming-of-age adventure” (Culturess) about a teen girl with mythic abilities who must defend her world against restless spirits of the dead. The spirits of the dead do not rest. Artemisia is training to be a Gray Sister, a nun who cleanses the bodies of the deceased so that their souls can pass on; otherwise, they will rise as ravenous, hungry spirits. She would rather deal with the dead than the living, who whisper about her scarred hands and troubled past. When her convent is attacked by possessed soldiers, Artemisia defends it by awakening an ancient spirit bound to a saint’s relic. It is a revenant, a malevolent being whose extraordinary power almost consumes her—but death has come, and only a vespertine, a priestess trained to wield a high relic, has any chance of stopping it. With all knowledge of vespertines lost to time, Artemisia turns to the last remaining expert for help: the revenant itself. As she unravels a sinister mystery of saints, secrets, and dark magic, Artemisia discovers that facing this hidden evil might require her to betray everything she believes—if the revenant doesn’t betray her first.