City of Heavenly Fire

City of Heavenly Fire is a young adult fantasy romance novel, the sixth and final installment in The Mortal Instruments series, and chronologically the twelfth installment in The Shadowhunter Chronicles franchise by Cassandra Clare. It was released on May 27, 2014. The book once again follows the adventures of the teenage Shadowhunter, Clary Fray, and her allies in facing her brother Sebastian Morgenstern and his allies of Endarkened Shadowhunters. It also ties in with both The Infernal Devices and The Dark Artifices series by having their main protagonists, Tessa Gray and Emma Carstairs, appear as supporting characters and connecting the worlds of The Infernal Devices and The Dark Artifices.