City of Bones
But it hit the bookshelves back in March 2007, and continues to be an extremely popular title.
The main character, Clary, leads a seemingly normal life until her mother disappears and their house is ransacked by a supernatural creature. Shortly after, Clary discovers she is actually a Shadowhunter-- a warrior who kills demons. Upon learning this, Clary is swept into an unknown world filled with vampires, werewolves, fairies, and more. Clary makes friends with other Shadowhunters and with their help seeks to find her mother, as well as her memories of the past.