CHAPTER XII
Into the Cave
Frank Hardy bent over the wheel.
"I'm going closer," he said. "We'll make absolutely sure of this."
He altered the course of the boat so that it would intercept the other craft, at the speed they were going. Then he turned up his coat collar and drew his cap lower over his eyes.
"If it's the same boat and if the same men are in it, we should be safe enough as long as they don't recognize us. They saw us that day, but they've never seen the Sleuth. We'll get as close to them as we can."
But the other craft had increased its speed. It was a powerful boat and a high curl of foam now rose from its bows as it plunged through the waves in a rapid flight toward the mainland in the distance. The roar of the engine was borne to the boys' ears on the breeze.
"We're going to lose them," muttered Frank. "They're too far ahead of us, unless we want to cut in and meet them right near the land."
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