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TOM SWIFT AND HIS SUBMARINE BOAT
this speed. If they don't look out," he went on as he looked from one of the aft observation windows, "they'll foul us, and"
His remarks were interrupted by a jar to the Advance. She seemed to shiver and careened to one side. Then came another bump.
"Slow down!" cried the captain, rushing toward the pilot house.
"What's the matter?" asked Tom, as he threw the engines and electrical machines out of gear. Have we hit anything?"
"No. Something has hit us," cried the captain. "Their submarine has rammed us."
"Rammed us!" repeated Mr. Swift. "Tom, run out the electric cannon! They're trying to sink us! We'll have to fight them. Run out the stern electric gun and we'll make them wish they'd not followed us!"
