Grownups will remember Frank and Joe Hardy and their ability to solve even the most baffling of mysteries. The first book was published in 1927, and over the years the series has sold over 50 million copies. But mysteriously, the original books...
The house on the cliff has been vacant and is supposed to be haunted. Then it is reported to be the abode of criminals. Mr. Hardy starts to investigate and disappears, so the boys set to work to see what they can do.
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When...