Killing a Blood asks for a piece of your soul.

The Josephine that has returned to the tunnels is a version broken by her disappearance. And while she is propelling the resistance fighters toward action, demanding knife-edge precision, Luke is tormented by his lost memories and the transformation of his wife. His desperation to understand grows by the day, threatening his ability to lead his people.

As relationships shift, new alliances form and secrets hang heavy, the tunnels grow ever more dangerous.

Who exactly has Josephine Luquet become, and what is she hiding?

Perfect for fans of Pierce Brown, Laini Taylor and Maggie Stiefvater.