The Guardians

Anna's return to normal life screeches to a halt when Department 126 orders her to track down the Spear of Destiny. When sinister forces and betrayals turn the hunter into prey, Anna must rely on instinct and a little help from her guardian angel. 

Traipsing the globe, Anna struggles in her newfound role as a Protector. Her fledgling abilities are tested. Between time travel lessons gone afoul and discovering powerful healing skills, Anna must uncover the Department's mole before it is too late. And when a mysterious letter arrives, Anna learns not everything is as it seems.