The Hidden Staircase

When Nancy Drew is asked to investigate strange occurrences at an old family mansion, she soon finds herself surrounded by eerie noises, unexplained disturbances, and disappearing valuables. While some believe the house is haunted, Nancy suspects there is a much more earthly secret behind the strange events.
Determined to uncover the truth, Nancy follows a trail of clues through the mysterious house, searching for hidden passages and answers. But the deeper she goes, the more dangerous the mystery becomes.
The Hidden Staircase is the second adventure in the classic Nancy Drew Mystery Stories, filled with suspense, clues, secret passages, and vintage detective adventure.