Hidden Staircase, Version 2
Author: first_name: Mildred A. Wirt
last_name: Benson
Language: English
Year: 1930

The second book in the Nancy Drew detective series. Is it a ghost causing the mysterious noises and shadows in the old Turnbull mansion, or is something even more sinister going on? Nancy Drew is determined to find out! (Summary by Amanda Leung)