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The Mystery of the Moaning Cave (Afred Hitchcock and the Three Investigators)
The Mystery of the Moaning Cave - Afred Hitchcock and the Three Investigators Author:William Arden "Listen! It's started again!" whispers Peter Crenshaw. What is that moaning sound from the cave of Devil Mountain? And why does disaster always follow? The Three Investigators go deep inside the mountain to find the answers. Instead, they find a ghastly skeleton--and nearly become skeletons themselves, as death stalks the moaning cave!