Maggie has discovered a kobold—a mischievous creature who has bad intentions for Maggie's household. Maggie and Hasenpfeffer head to Mr. McGuire's Magic Repair Shop to solve the problem and end up on a tricky journey into the past via an old Halloween photograph. With Fiona and Raphael's help, Maggie assists her grandfather in capturing the kobold for good—hopefully without losing her own powers in the process.