Read "The Great Airport Mystery" by Franklin W. Dixon online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
"What's that? " demanded the storekeeper abruptly, in response to Frank Hardy's inadvertent exclamation.
"Nothing," answered Frank. "I was surprised -- that's all. You see, there was a robbery at the airport only a day or so ago."