City of Fallen Angels (The Mortal Instruments Series #4) by Cassandra Clare

Trust is dangerous, and to love is to destroy. Plunge into the fourth installment in the internationally bestselling Mortal Instruments series and ""prepare to be hooked"" (Entertainment Weekly)- now with a gorgeous new cover, a map, a new foreword, and exclusive bonus content! City of Fallen Angels is a Shadowhunters novel. The Mortal War is over, and sixteen-year-old Clary Fray is back home in New York, excited about all the possibilities before her. She'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. And- most importantly of all- 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. Clary's best friend, Simon, can't help her- his mother just found out that he's a vampire, and now he'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.