
Gomber was behind the haunting's as well.

Based on Nancy's suspicions, police raid Gomber's house, where Carson Drew has been a prisoner for days.

Nancy reveals her discovery to the elderly Turnbulls in the morning, then they investigate together.
#NANCY DREW AND THE HIDDEN STAIRCASE SERIES#
Her exploration leads her back to the attic of the home where she is staying, up another series of staircases. While roaming around the odd house, Nancy accidentally falls through a secret panel and down a staircase, discovering a tunnel. She successfully breaks into the basement but must hide and evade Gomber's accomplice and housekeeper, a large, ill-tempered African American woman. Meanwhile, Nancy finds out that the nefarious Gomber owns the adjacent estate, very similar in appearance to "The Mansion." She decides to investigate one rainy night, armed with a revolver and an electric torch. Nancy's focus on the mystery is derailed when Carson fails to contact Nancy for several days, and appears to have vanished. A valuable pin has been stolen, and canaries get into the house of their own accord. Nancy discovers odd happenings at the Mansion, which is primitive-it lacks electricity. He will travel to Chicago during the first part of Nancy's stay at the old estate, and join her later. Carson Drew, undaunted, agrees to allow Nancy to investigate the Mansion, and sends his revolver with her. Nancy's father is being harassed by a crooked character, Nathan Gomber. The complaint is that their home, "The Mansion," is haunted.

In the original 1930 version of the story, Nancy is introduced to the Turnbull sisters by Abby Rowen, a character aided in the resolution of the first volume.
