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. She hopes to become a warden, charged with protecting the kingdom from their power. Then an act of sabotage releases the library’s most dangerous grimoire.

The five most dangerous liars in the land have been mysteriously summoned to work together for a single objective: to kill the god king Joon. He has it coming. Under his merciless immortal hand, the nobles flourish, while the poor and innocent are imprisoned, ruined … or sold. And now each of the five blades will come for him. Each has tasted bitterness—from the hired hit man seeking atonement, a lovely assassin who seeks freedom, or even the prince banished for his cruel crimes.

Henrietta Doryn has never enjoyed fighting. She'd rather be in the kitchen baking cookies. But it's her duty as Warrior Princess to face off against the forces of evil. As such, she's unceremoniously shooed from her kingdom to go eliminate the all-powerful Dark Lord next door. Keith Monfort has never enjoyed ruling with an iron fist. He'd prefer to be in his workroom tinkering with practical magic. But it's his duty to lead the Dark Enchanted Forest and the forces of evil. So when Henrietta shows up at his door, he's only too happy to invite her in for tea to talk it out instead.

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 has any chance of stopping it.

She and her assistant, Caz, a magically sentient spider plant, have spent the last eleven years sequestered among the empire’s most precious spellbooks, preserving their magic for the city’s elite. But when a revolution begins and the library goes up in flames, she and Caz save as many books as they can carry and flee to a faraway island Kiela was sure she’d never return to: her childhood home.