Lucy Wisdome has a secret. In the three years since her mother died, Lucy has tried to live a normal high school life while struggling to keep her mother's memory alive. When she stumbles upon her mother's book collection in the attic, she is unprepared for what she finds: books on magic, the occult, and numerology - things her mother never mentioned to her. And the more Lucy reads, the more she discovers that what she never believed possible is now very real. When the group of outcast computer hackers she belongs to finds themselves targeted by something far beyond their abilities, Lucy must confront her own fears and a powerful unknown enemy - or risk losing everything she has left.