“The lascar!” muttered Jack between his teeth, as he stepped back a pace and whipped out his knife in anticipation of a renewal of the attack.

But the lascar, baffled in his attempt to take his enemy by surprise, did not repeat the blow. Instead, he drew off, and with all his strength drove the iron point of the boathook through the cutter's side below the water-line.

“By Heaven!” cried Jack, as he perceived his intention, “I'll soon settle scores with you, my fine fellow.”

Springing lightly upon the gunle, at a single bound he cleared the few yards of open water intervening between the cutter and the canoe, and with all the impetus of his leap drove the knife into the lascar's shoulder up to the very hilt.

The lascar went overboard like a log. The canoe overturning at the same instant, Jack followed him.

The noise of the scuffle having roused the sleepers, all was now wild commotion on board the cutter; Captain Mango roaring out his strange nautical oaths, and stumping hither and thither in search of something with which to stop the leak; Don shouting wildly at Jack, as he hastily threw off shoes and coat to swim to his assistance. Before either well knew what had actually happened, Jack was alongside.

“What's the matter? Are you hurt?” Don inquired anxiously, giving him a hand over the side.

“Hurt? No, not a scratch,” said Jack lightly, scrambling inboard, and proceeding to wring the water from his dripping garments. “A narrow squeak, though. That lascar villain has got his knife back, anyhow.”

“Who?” cried Don in amazement; for, amid the confusion, neither he nor the captain had seen the native.

“The lascar. What else do you suppose I went over the side for? I dozed off, you see, captain,” said Jack, as the old sailor came stumping up with extended hand, “and that lascar dog, who must have seen us sail and paddled after us, stole a march on me, and tried to crack my nut with a boathook. Lucky for me, he ran his canoe against the side and woke me up. Got on my feet just in time to dodge the blow. Then he smashed the boathook through the side. By Jove! I forgot that. We must stop the leak, or we'll fill in no time.”