Having survived the catastrophic events at Sparrow Hills in Book Two, Allie Weaver is grief-stricken, disheartened, and disillusioned with her adopted school, John Paul 2 High and with her newfound Catholic faith. So when a friend invites her to worship at her evangelical church, Allie goes along for the ride: and finds healing. Plus a new love interest: Keenan Clearwater, lead singer of the worship band Forgyvyn.
Suddenly Catholicism is seeming a bad fit for Allie: the standards are too high, she's not clicking with the new crop of JP2HS kids and their strict parents, and her new church just seems much more - fulfilling.
Meanwhile, students return to give the John Paul 2 High building a summer makeover - only to find that the Poltergeist has returned as well - and this time with more dangerous pranks. Hardworking former homeschooler Brian Burke, with his friends Liz and J.P, are determined to catch the ghost once and for all.