JEEEEM!!! Jem Jem Jem Jem was in this he was he was! :D I love Jem.
Okay. City of Heavenly Fire is the last book of The Mortal Instruments. Sebastian is creating an army of Zombie like evil shadowhunters and trying to take over the world or whatever. Clary and friends set off into a demon realm to find and defeat Sebastian before his evil shadowhunter zombies kill off everyone in the city. In this book we get a deeper view at what happened before and after the epilogue of Clockwork princess and a look at the new characters that will be staring in the next shadowhunter series, they seem awesome and i'm already excited.
COHF was amazing and it ended nicely this whole series is awesome i love Cassandra Clare's writing and can't wait for the next Series.