“This is no job for a wireless kid to tackle,” he said grimly. “Dobson, you spoke next. I’ll send you. Get ready and make fast a line around your waist.”

But Dobson was already knotting a line about his middle. He stripped to his underwear, and, while Jack looked on with bitter disappointment in his face, the man tossed one end of the line to Mr. Brown and then, without a word, plunged overboard.

Jack watched him with a thrill of admiration, as with strong, confident strokes he cleft the sea. Then he looked in another direction. Off to the leeward was the Ajax, tossing on the seas for an instant and then vanishing till only the tops of her masts and a smudge of smoke were visible.

It was growing dusk. A wan, gray light filled the air. The next time the steamer rose on a swell, Jack saw that at her mast-head the riding lights had been switched on. They glowed like jewels in the monotonous sea-scape of lead and dull green.

Dobson reached the wreck. With clever generalship he had waited for a big sea, and then, as it rose high, he had ridden on it straight for the vessel. When the sea swept by, they saw him clinging to the main chains and after an instant begin clambering on board with the line trailing from his waist.

Those in the boat broke into a wild cheer. Jack’s voice rang out above the rest.

“There’s a real seaman,” he thought; “one of the kind my father and Uncle Toby were.”

As the hoarse shouts of the men in the boat rang over the waters, they saw the form of Dobson creeping aft along the wreckage. They watched through the thickening light as the shadowy figure toiled along. He gained the side of the old man and the little girl.

Taking the line from his waist, he made it fast to the latter’s body.

“Give way, men,” ordered Mr. Brown, and the boat was warily maneuvered under the stern of the wreck. It was dangerous, risky work, but while the small craft tossed almost under the derelict’s counter, the forms of the old man and the child were lowered into her. Although both were badly exhausted, there were stimulants in the boat, and Mr. Brown pronounced both to be safe and sound and not in any danger.