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The Submarine Boys and the Spies Dodging the Sharks of the Deep Chapter 19 A JOKE ON THE SECRET SERVICE! 
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The Submarine Boys and the Spies Dodging the Sharks of the Deep Chapter 19 A JOKE ON THE SECRET SERVICE! Chapter 19 A JOKE ON THE SECRET SERVICE!
"What's that noise?" wondered Williamson.
He stopped, listening intently, for he was still below.
Against the bottom of the "Benson's" hull he heard a steady, slow, monotonous bumping. As he listened, his face took on an anxious look.
"We're in a friendly port," muttered the machinist. "It can't be anything very wrong, and yet-"
That sl
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