Isabelle Lightwood is searching for her birth mother, little did she know that she would soon be involved in one of the biggest and most dangerous art heists of all time. A small but powerful criminal organisation who call themselves the 'Shadow hunters' are planning to steal a recently discovered art work known to be Leonardo Da Vinci's last masterpiece...'The Mortal Instruments'

After an accident, Jace's memory has gone, he belives he's a 'shadow hunter'. But is it Jace's memory that's gone...or Clary's?