Tom soon had clamped them on his feet, and then, holding the improvised sail at his back, he headed for the runaway iceboat. The sail was almost like the regular ones skaters use.

Tom soon developed great speed, for the wind was strong and directly at his back. The others started to run after him. The iceboat was some distance ahead, but Tom was rapidly overhauling her.

“I’ll get her before she goes to smash,” he murmured hopefully. The boat suddenly heeled over, and Tom thought surely she was going to capsize. But she righted, and then went off on a new tack. Tom saw his chance.

“I can quarter across and get aboard, if she doesn’t veer again!” he cried, and he altered his course. Nearer and nearer he came to the iceboat, until he saw that he would soon pass her. “If only she doesn’t veer around,” he murmured hopefully.

Fortunately, however, the wind held in that direction for a few minutes, and the main sheet of the sail was caught in such a way as to hold the craft steady.

“Now to do some skating on my own hook!” cried Tom, as he cast aside the little sail. He struck out with all his strength and speed, and, as he came close to the boat, with a leap and a spring he hurled himself into the blanket-covered cockpit, landing with a thud.

It was the work of but a moment to seize the rudder, and put the boat about, so that she was in control, though even as Tom did this she nearly capsized.

“Whoa, now!” he called, as to a restive horse, and then, settling himself down, he sent the boat back on a series of tacks to pick up his chums.

“Say, did you see him skate!” exclaimed Bert Wilson in admiration, as he called attention to the burst of speed on Tom’s part.

“I should say yes,” admitted Jack. “If we have a race I’ll back Tom.”