Cordelia Carstairs, a Shadowhunter trained to battle demons, travels with her brother to London where they reconnect with childhood friends but soon must face devastating demon attacks in the quarantined city.

"Cordelia Carstairs has lost everything that matters to her. In only a few short weeks, she has seen her father murdered, her plans to become parabatai with her best friend, Lucie, destroyed, and her marriage to James Herondale crumble before her eyes. Even worse, she is now bound to an ancient demon, Lilith, stripping her of her power as a Shadowhunter. After fleeing to Paris with Matthew Fairchild, Cordelia hopes to forget her sorrows in the city's...