City of Bones by Cassandra Clare
City of Bones is the first book of the Mortal Instruments by Cassandra Clare. Clary, who has lived a very mundane life discovers that there is more to her existence than she ever expected. She falls for the wrong guy and drags her best friend, Simon, into a terrific mess. With the revealing of a world that includes not only humans, but also vampires, demons, witches, warlock and werewolves, everything that Clary and Simon ever knew is tested. When Clary’s mother is abducted and their house ransacked, Clary must learn to rely on her new Shadowhunter friends to help find her mother a link to a past she never knew she had.