Clary Fray wants nothing more than to finally live a normal life again. But what is considered normal when someone is a Shadowhunter who destroys demons, his mother is in a coma induced by magic, and werewolves, vampires and fairies are swarming around him at the same time? Clary would love to spend more time with her best friend Simon, but she can't get rid of the Shadowhunters - especially her not-handsome but annoying newfound brother Jace. The only way Clary can help her mother is to track down the deranged Shadowhunter, Valentine, who may be crazy, but is certainly evil - besides, he's her father. When the second of the Doomsday Hallows is stolen, the fearsome Inquisitor suspects Jace. Could the boy really betray everything he believed in and stand by his father?