
Written by Franklin W. Dixon
Book #30 in the The Hardy Boys series
A storm, a mysterious wallet, and a stolen truck lead to a thrilling mystery.
Stranded at sea, Frank and Joe Hardy's SOS is ignored by a passing yacht. A helicopter drops a wallet with two thousand dollars beside them. The next day, a truck loaded with rifles vanishes. Are these events connected? The Hardy brothers dive into a tangled web of intrigue, facing one of their most thrilling challenges yet. Can they unravel the mystery before it's too late?
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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