The Wailing Siren Mystery (Hardy Boys, No. 30)
Books / Hardcover
ISBN: 0448089300 / Publisher: Grosset & Dunlap, January 1951
A wallet containing two thousand dollars and a missing shipment of rifles plunge Frank and Joe Hardy into a unique adventure
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Caught in their motorboat the Sleuth by a sudden storm at sea, Frank and Joe Hardy are relieved to see the lights of a yacht. But their SOS ignored. The shrill sound of a siren fills the night air and moments later a helicopter drops an object alongside the Sleuth: a wallet containing two thousand dollars! The next day, a truck carrying a shipment of high-powered rifles has been stolen. These two apparently unconnected events are clues in a tangle of mystery which turns out to be one of the detective brothers’ most exciting adventures.
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