Chain of Iron (The Last Hours, Book 2) Cassandra Clare

"Chain of Iron" by Cassandra Clare continues the saga of the Shadowhunters in Edwardian London, where Cordelia Carstairs finds herself entangled in a web of lies, secrets, and danger. Engaged to James Herondale to protect her reputation, Cordelia struggles with her unrequited love for James, who is drawn to the enigmatic Grace Blackthorn.

As Cordelia grapples with her feelings and the truth about her arranged marriage, a serial killer begins targeting Shadowhunters in London. Cordelia, along with James, Lucie Herondale, and the Merry Thieves, sets out to uncover the identity of the murderer. However, each member of their group harbors secrets of their own.

Lucie plans to resurrect her deceased brother, Jesse, while Cordelia has sworn loyalty to a mysterious power, and James becomes entangled in his grandfather's dark schemes. Meanwhile, Cordelia's connection to the legendary sword Cortana brings unforeseen consequences.

As they navigate the treacherous streets of London, the Shadowhunters must confront their inner demons and face the possibility that one of them may be the killer they seek. With danger lurking around every corner, Cordelia and her companions must race against time to unravel the mystery before it's too late.

"Chain of Iron" is a gripping tale of love, betrayal, and redemption set against the backdrop of a shadowy world where nothing is as it seems, and trust can be a deadly weapon.