The Mystery of the Haunted House
- Episode aired Jan 30, 1977
- 1h
The Hardys investigate the disappearance of their own father, a case involving a haunted house, a graveyard, and espionage.The Hardys investigate the disappearance of their own father, a case involving a haunted house, a graveyard, and espionage.The Hardys investigate the disappearance of their own father, a case involving a haunted house, a graveyard, and espionage.