The spirit of badness took possession of him. He was annoyed. The boat would soon go away if the anchor was withdrawn, so he made a grab for it and seized the hook, or fluke, in his mouth, and started out to sea. Riley felt the sudden tug from below. He almost guessed what it was, and quick as lightning took a turn with the line about the forward seat. Then, as the boat’s headway increased rapidly, he took the bight of the line aft and seated himself so as to keep her head up and not bury in the rush. His knife was at hand ready for a sudden slash at the line in case of emergency.

“If he’ll let go abreast o’ the p’int, all right,” said Riley. “I seen lots harder ways o’ getting about than this.”

The tide was rushing out with great rapidity, and going along with it the boat fairly flew. Riley watched the shore slip past, and looked anxiously toward the lighthouse for the head keeper to see him. It would give the old man a turn, he thought, to see a boat flying through the water with the occupant sitting calmly aft taking it easy. It made him laugh outright to imagine the head keeper’s look of astonishment. Then he saw the figure of the old man standing upon the platform of the tower gazing out to sea. He roared out at the top of his voice, hoping to attract attention, but the distance was too great.

Meanwhile the sea-devil was sliding along the bottom, heading for the line of white where the surf fell over the bank of the outer bar. The hook, or fluke, of the anchor was held securely in his powerful jaws, and the force necessary to tow the following craft was felt very little. The great side fins, or flukes, merely moved with a motion which caused no exertion to such a frame, and the long tail, armed with its deadly spear of poisoned barbs, slewed slightly from right to left, steering the creature with accuracy. And while he went his mind was working, trying to think how he could get the man from the boat after he had taken him out to sea beyond any help from the shore. A sea-devil he was, and rightly named. This he very well knew, and the thought made him fearless. He had rushed many schools of mullet and other small fish, who fled in frantic terror at his approach. He had slid into a school of large porpoises, the fishermen who seldom gave way for anything, and he sent them plunging in fear for the deep water. Once he had, in sheer devilry, leaped upon a huge logger-head turtle weighing half a ton, just to see if he could take a nip of his neck before the frightened fellow could draw in his head behind the safe shelter of his shell. He could stand to the heaviest shark that had ever entered the Sound, and had once driven his spear through the jaws of a monster who had sneaked up behind him unawares and tried to get a grip upon his flukes. All had shown a wholesale respect for his powers, and he had grown more and more malignant as he grew in size and strength. Even his own family had at last sought other waters on account of his peculiarly ferocious temper.

Now he would try the new game in the craft above, and he felt little doubt as to the outcome. A sudden dash and twist might demoralize the floating tow, and as he neared the black can buoy which marked the channel, he gave a tremendous rush ahead, then a sudden sheer to the right, and with a quick slew he was heading back again in the opposite direction.

THE GREAT SHAPE SAILED FOR THE TOP OF THE BUOY.

Riley felt the sudden jerk ahead. He was as far as he wished to go down the shore, but had hesitated to cut the line in the hope that the devil would let go. Lines were not plentiful, and to lose this one meant an end to fishing for several days. The canoe shot ahead with prodigious speed. Riley seized the knife and was about to cut loose, when there was a sudden sheer to starboard, and before he could do anything the canoe was jerked quickly over upon its side. He leaped to the rail and tried to right it, but almost instantly it was whirled about and capsized. The sea-devil now dropped the anchor and turned his attention to the boat. The fluke, taking the ground in the channel, anchored the craft a few feet distant from the can buoy, and Riley was climbing upon the upturned boat’s bottom as the creature came up. Lying flat upon the keel, Riley balanced himself so as to keep clear of the sea, watching the big black can swinging to and fro in the current. If he could but seize the ring in the top he might pull himself to a place of safety.

The devil came back slowly, looking about for the occupant of the small boat. He was not in sight, and the craft was perfectly empty. This puzzled him, and he began circling around to see if he had overlooked him in the tideway. Then he saw a movement upon the boat, and made out the keeper lying upon the keel. He came slowly up to the side of the craft, and Riley saw a huge shadow rising alongside of him, spreading out a full two fathoms across the wings, or flukes. The ugly eyes were fixed upon him, and he yelled in terror. It was like some horrid nightmare, only he knew the deadly nature of the creature, and realized what a fate was in store for him once the devil had him fast.

The devil was in no hurry to rush matters, however, for now that the boat was again stationary he would investigate the subject before making an attack. He was not hungry.