The Hidden Staircase
by Carolyn Keene
“Behind every shadow lies a secret waiting to be unearthed.”
Nancy Drew faces one of her most chilling cases yet when she is summoned to the shadows of Twin Elms to investigate a series of ghostly occurrences. As she navigates secret passages and unsettling warnings, the young detective must determine if the mansion is truly haunted or if a clever criminal is lurking in the dark.
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