The Three Investigators Kids, 39, The Mad Inventor

Peter could hardly believe what he was seeing. "The professor's crazy. That thing will never fly." But Justus put on a helmet and took a deep breath. "Who knows. It's worth a try. Everyone on board, please!"

An inventor's competition is taking place in Rocky Beach. But many things go wrong and it smells like sabotage. The Three Investigators offer their help to a mad professor and soon find themselves in an exciting case...

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