The Demon's DenThe 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. |
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200 Old Tappan Apocalypse cult barn Bayport Biff Hooper blond boy boat brothers building Camp Ketchumken camper Canadian Candir Karu Chester Chet and Biff Chet Morton contest Devil door exclaimed eyes father Fenton Hardy fishing football forest Frank and Joe Frank asked Frank grinned Frank replied genetic engineering George George's giant guys HARDY BOYS heard Hooper Jeffrey Peters Joe asked Joe's John River kidnapping kids knew Lafoote's lake Larry Smith Lieutenant Henderson looked lumberjacks Martin Waddell master MYSTERY NANCY DREW needle night nodded Okay Old Tappan Omega Paul Bunyan Phillipe Pierre Lafoote Randolph Rhee reversing falls road scientist shook his head shrugged Simon & Schuster sleuths Sligo Tressel smiled stop story Suddenly sure T-shirt tell told took tracks trail train tree truck Vermont VISA voice wait watched Watley What'll young detectives