Summary:
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 Downwo -- From Amazon.com Product Description