The Hidden Staircase

A friend of Nancy Drew's hopes to use her sleuthing skills to solve what seems to be a strange haunting at her aunt's house!Hearing strange creaking, eerie thumps, and even music, the secretive mansion seems to be hiding something sinister.At the same time, Nancy's father is warned of a dangerous situation - he must find a missing man to save the railroad.Nancy must find a way to help both her friend and her father, and hopefully a few more along the way!