The guardians of hell

What would you do if you had found out your life was not your own, that you had alway's been destined for something you did'nt want? Avery Wilson is nineteen, against all odds she has suvived an abusive father,and endured foster care. She has always felt like an outcast even though she is well liked ,her life is turned upside down when she find's she has been chosen to become a guardian. She is part of a phrophecy that will destroy the current ruler of hell. Will she be able to fulfill her destiny or is the human race doomed to become part of hell.