The story unfolds over several years, with a complex and intricate setup before the main characters, Jack Packard and "Doc" Long, arrive. The narrative begins with a girl defying her parents' wishes by marrying, leading to a chain of events that includes a tragic death, a woman's descent into madness, and a mother's disappearance and assumed death. The story jumps forward in time to reveal the daughter of the insane woman, who has since married and become pregnant, returning to her family's ancestral home. However, she is not welcomed warmly, as the family's dark past is revealed to be filled with secrets and skeletons from around the world.
The Unknown
A wayward heiress returns to her family's foreboding estate, where she enlists the help of two detectives to unravel the mysteries and terrors plaguing the crumbling mansion.
