City of Heavenly Fire by Cassandra Clare is the sixth and final book in the Mortal Instruments series. In this book Clary, Jace, Simon and Isabella team up to stop Sebastian from setting demons loose on the world. Sebastian has turned Shadowhunter against Shadowhunter by using the Immortal Cup to transform Shadowhunters into the “Endarkened” a group of souless Shadowhunters who are ruled by Sebastian. The Endarkened attack Alciante, the home of Shadowhunters and during the battle lots of lives are lost. One thing about this book that I really enjoyed is that lots of unexpected things occurred.
What can I say this series was exciting as the first books. New characters are introduced and there are lots of surprises. Exciting, thrilling and work the over 700 page read. Enjoy!