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24 The Short Wave Mystery (1966): The Hardy Boys Mystery

This is a picture of the Hardy Boys Book 24 The Short Wave Mystery (1966): The Hardy Boys Mystery

Volume 24: The Short-Wave Mystery

The Hardy Boys tune into danger when they investigate a series of mysterious radio transmissions. As they decode cryptic messages, Frank and Joe uncover a plot involving international spies and stolen military secrets. With the aid of their radio expert friend, Tony Prito, the brothers must navigate the airwaves and outsmart dangerous adversaries to protect national security.


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