The Shadowhunter Cordelia Carstairs seemingly has everything she ever wanted: Engaged to her great love James Herondale, she is building a new life for herself in Edwardian London – and with the legendary sword Cortana, she impresses both friends and foes. But happiness is merely a facade: Her marriage will be a lie, as James' love belongs to the mysterious Grace. And a cruel murderer embarks on a seemingly arbitrary quest for revenge among London's Shadowhunters. Cordelia and her companions desperately try to stop him – only to become increasingly entangled in their own secrets and lies.