The demon's den

The Hardy boys, vacationing in Vermont, offer to help the police locate a missing camper and find themselves involved with a doomsday cult, a deadly strain of bacteria, and possibly the devil.

Bibliographic Details
Main Author: Dixon, Franklin W.
Other Authors: Frame, Paul 1913-
Format: Book
Language:English
Published: New York Simon and Schuster c1984.
Series:Dixon, Franklin W. Hardy boys mystery stories.
Subjects: