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On a visit to Germany the Hardy brothers investigate the theft of plans for a newly invented submarine and the mysterious disappearance of valuable coins and paintings.
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Unpretentious, resolved, cool and plot-driven.
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On Open Library, 3 have read it and 12 want to.
Charles Leslie McFarlane (October 25, 1902 – September 6, 1977) was a Canadian journalist, novelist, screenwriter, and filmmaker, who is most famous for ghostwriting many of the early books in the very successful Hardy Boys series, using the pseudonym Franklin W. Dixon, and the Nancy Drew series under Carolyn Keene.
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