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Chapter XX

The Shotgun

So quietly had the man approached the cave mouth that the Hardy boys were taken completely by surprise. They wheeled about.

There, in the entrance, stood Captain Royal.

Evidently, it took him some time to become accustomed to the dim light of the cave, for he was peering intently at the boys, but with no sign of recognition on his face.

"Who's that?" he shouted impatiently. "Answer me!"

Frank gulped. Then, trying to achieve a confident tone of voice, he said:

"Why, hello, Captain. We just dropped in for a visit."

But Captain Royal was not appeased.

With a roar of wrath, he advanced into the cave.

"I know you now!" he bellowed. "I know you. It's those boys who were here yesterday. Don't deny it!"

"Sure!" said Joe. "It's only us."

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