Mortal Instruments

The Mortal Instruments series by Cassandra Clare tells the story of Shadowhunters, Downworlders, and demons. Shadowhunters were created by the angel Raziel, who combinded his blood with Jonathon Shadowhunter to create a new race, devoted to destroying demons.

The series is about Clary Fray, who, determined to find her kidknapped mother, discovers the world of Shadowhunters, demons and Downworlders. She meets Jace Lightwood, who tells her all about the world that is hidden from ordinary humans. Vampires, warlocks, werewolves, and faeires are all real, and so is the monster living under the bed. Shadowhunters are made to destroy rouge Downworlders and any demons that threaten the human race.

As Clary learns more and more about Shadowhunters, she also learns that her mother has been hiding more than Clary thought...