The skipper looked at the boat through the spy-glass, and identified the captain.

"He's trying to get away," said he.

"What for?" asked Monkey, who was in blissful ignorance of the smuggling operation of the captain.

"You will soon know," replied Bobtail.

The Eagle, under jib and mainsail, was standing out of the harbor, and the Skylark had to pass her on her way to the wharf. Captain Chinks was at the helm himself, and at that moment, as he gazed at Little Bobtail, he was the maddest man on the waters of Maine. Both boats were going free, and when they were nearly abreast of each other, and not a hundred feet apart, the captain suddenly put up his helm, and the Eagle darted towards the Skylark, as if she shared the spite of her skipper, and as an eagle would pounce upon a skylark.

"Down with your helm!" shouted Bobtail, full of excitement, for the danger of a collision was imminent.

If the Skylark had held on her course, she would have been struck amidships by the bow of the Eagle; but Bobtail jammed his helm hard down, the result of which was to throw the yacht up into the wind, and bring her alongside the other craft. As it was, the Eagle's bow grated along the quarter of the Skylark. Bobtail supposed that Captain Chinks intended to board the yacht, and he instantly seized the spare tiller, which he always carried in the standing-room when it blew hard, and stood ready to "repel boarders." But the captain did not intend to capture the Skylark. Probably he intended to sink her; but his purposes were only known to himself. The sails of the Eagle were still full, and she continued on her course.

"Keep out of the way next time!" shouted Captain Chinks.

Bobtail made no reply, but filled away again, and in a few minutes was at the wharf. Mr. Hines and Mr. Brooks leaped on board.

"After him, Bobtail," cried the detective, earnestly, as he shoved off the bow of the boat.