City of Mirth and Malice

Nicolai Attano has taken control of the Iron Saint Railway, but the win counts for little once his wife, Camilla, is kidnapped. Lynchaven is closing in on him, and he has nowhere safe to turn.

His only option is a black-market dealer who can help him find her. The cost of that help is his own life.

Camilla is held prisoner by an alchemist. While she is locked away, new magical powers wake in her, and she has no training in how to handle them. She has to bring them under control to survive, and she cannot count on anyone reaching her in time.

The book is a fantasy romance set on the post-industrial Isle of Lynchaven. It is the second and final volume of the Vows of Vengeance duet, and it concludes the enemies-to-lovers story of Nico and Milla that began in House of Bane and Blood.

The central question is what a rescue is worth when debts in this world are not easily repaid or forgiven, and the price of one is a life.