[PDF] Nancy Drew Mystery Stories #2 The Hidden Staircase by Carolyn Keene
After receiving a call from her good friend Helen Corning, Nancy Drew agrees to help solve a baffling mystery. Helen's Aunt Rosemary has been living with her mother at the old family mansion, and they have noticed many strange things - music, thumps, and creaking noises at night, and seen eerie shadows on the walls. Could the house be haunted?
Helen's great grandmother, Miss Flora, thinks the house has a ghost. Nancy doesn't believe in such things, but she's puzzled and very anxious about Miss Flora's frail health.
Librarian's note: the characters, settings, description, and other details have been done for the first five of the 1980s/1990s editions: #1, The Secret of the Old Clock, #2, The Hidden Staircase, #3, The Bungalow Mystery, #4, The Mystery of Lilac Inn, and #5. The Secret of Shadow Ranch. Librarian needed for #6 and on!