The Ghost in the Castle — Stephanie Faris

Gabby and the ghost-hunting crew are on site at a real-life castle. Reports of a mysterious “lady in white” haunting the halls are perfect for Dad’s podcast. This time, Gabby is determined to debunk everything that happens. But when she hears a strange phone ringing—and the sound moves as she gets closer—Gabby learns there are some things even she can’t explain.