Ever since she was cursed by a faerie, Theodora Ettings has had no sense of fear or embarrassment—an unfortunate condition that leaves her prone to accidental scandal. Dora hopes to be a quiet, sensible wallflower during the London Season—but when Elias Wilder, the strange, handsome, and utterly ill-mannered Lord Sorcier, discovers her condition, she is instead drawn into peculiar and dangerous faerie affairs.

Cambridge professor Emily Wilde is good at many things: She is the foremost expert on the study of faeries. She is a genius scholar and a meticulous researcher who is writing the world’s first encyclopaedia of faerie lore. But Emily Wilde is not good at people. She could never make small talk at a party—or even get invited to one. And she prefers the company of her books, her dog, Shadow, and the Fair Folk to other people. So when she arrives in the hardscrabble village of Hrafnsvik, Emily has no intention of befriending the gruff townsfolk.

Hart is a marshal, tasked with patrolling the strange and magical wilds of Tanria. It’s an unforgiving job, and Hart’s got nothing but time to ponder his loneliness. Mercy never has a moment to herself. She’s been single-handedly keeping Birdsall & Son Undertakers afloat in defiance of sullen jerks like Hart, who seems to have a gift for showing up right when her patience is thinnest. After yet another exasperating run-in with Mercy, Hart finds himself penning a letter addressed simply to “A Friend”.

Lady Augusta Colebrook, “Gus,” is determinedly unmarried, bored by society life, and tired of being dismissed at the age of forty-two. She and her twin sister, Julia, who is grieving her dead betrothed, need a distraction. One soon presents itself: to rescue their friend’s goddaughter, Caroline, from her violent husband. The sisters set out to Caroline’s country estate with a plan, but their carriage is accosted by a highwayman. In the scuffle, Gus accidentally shoots and injures the ruffian, only to discover he is Lord Evan Belford, an acquaintance from their past.

Marra never wanted to be a hero. As the shy, convent-raised, third-born daughter, she escaped the traditional fate of princesses, to be married away for the sake of an uncaring throne. But her sister wasn’t so fortunate—and after years of silence, Marra is done watching her suffer at the hands of a powerful and abusive prince. Seeking help for her rescue mission, Marra is offered the tools she needs, but only if she can complete three seemingly impossible tasks: