Becca Everwood, an upbeat college student, has just arrived in Italy with her brother Miles, but she is unaware that her arrival to the ancient city of Rome has come to the attention of all the wrong people. Well, not people exactly -guardian angels and powerful demons to be accurate. You see, Becca has one of the most precious gifts a human could have... something so valuable that ancient rivalries will be rekindled and hard-forged truces will be broken... something so powerful that if it fell into the wrong hands, mankind would be dragged into darkness for eternity, the problem is, Becca doesn't know she has it.