The Hidden Staircase

In this second Nancy Drew adventure from 1930, the young sleuth agrees to spend a few nights at Twin Elms, a rambling old mansion where Miss Flora and her daughter are being tormented by unexplained noises, moving shadows, and small thefts. Everyone else blames ghosts. Nancy suspects a flesh-and-blood culprit and a hidden way in and out of the house. The mystery turns personal when her father, attorney Carson Drew, disappears while investigating a linked land deal, and Nancy must find the secret passage before the danger reaches her own family. It remains one of the most atmospheric entries in the long-running series. Free PDF and EPUB edition.