Locked In Time by Lois Duncan

In a haunting tale of suspense and mystery, a teenage girl named Nore arrives at her new stepmother's Louisiana estate, only to uncover a chilling secret that defies the passage of time. As she navigates the eerie atmosphere of the mansion and its surrounding bayou, Nore becomes increasingly suspicious of her stepmother and her seemingly ageless family. With each passing day, she unravels a web of dark secrets that threaten her safety and challenge her understanding of reality, leading to a gripping confrontation with the supernatural forces at play.

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