Demon's Den
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15
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.
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113 primary books114 released books#81 in The Hardy Boys
The Hardy Boys is a 114-book series with 114 primary works first released in 1920 with contributions by Franklin W. Dixon, Jerrold Mundis, and Leslie H. Morrill.
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