When the bells in the steeple of the big downtown church in Asheville suddenly begin ringing at the stroke of midnight, Mandie and her friends have a new mystery to investigate. The unscheduled bells and bizarre writings on the outside walls of the church have the townspeople upset. Mandie determines that whoever is vandalizing the house of the Lord must be discovered and brought to justice.

But her zealous investigation only gets her in trouble; and when an influenza outbreak occurs in the town, many people are only too ready to blame it on the strange happenings at the church.