From New York Times bestselling author Chanda Hahn comes a new supernatural mystery series. A thrilling combination of Nancy Drew and the Vampire Academy. Seventeen-year-old Everly Hart became a "griever" the day she witnessed a tragic death. Imbued with a second sight, she can now see what others cannot-supernatural creatures called grimms. Then she receives an invitation from the Grimm Society to attend Gravemark, an...