The Mortal War is over, and sixteen-year-old Clary Fray is back home in New York, excited about all the possibilities before her. Sheâ€™s training to become a Shadowhunter and to use her unique power. Her mother is getting married to the love of her life. Downworlders and Shadowhunters are at peace at last. Andâ€”most importantly of allâ€”she can finally call Jace her boyfriend.
But nothing comes without a price.
Someone is murdering Shadowhunters, provoking tensions between Downworlders and Shadowhunters that could lead to a second, bloody war. Claryâ€™s best friend, Simon, canâ€™t help herâ€”his mother just found out that heâ€™s a vampire, and now heâ€™s homeless. When Jace begins to pull away from her without explaining why, Clary is forced to delve into the heart of a mystery whose solution reveals her worst nightmare: she herself has set in motion a terrible chain of events that could lead to her losing everything she loves. Even Jace.