The Mortal War is over, and sixteen-year-old Clary Fray is back home in New York, excited about her future opportunities. 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.