Jack had looked several times at the man in the stern. Somehow, he did not wholly like his appearance. There was something about him to signify that he must have recently arisen from a sick bed. Perhaps, tempted by an influx of tourists, and the demand for experienced guides to take them through the rapids, he had come back to work a bit too soon!

“He doesn’t seem as strong as the others,” Jack was thinking, even as he turned his head from time to time as if to see what lay behind, while they were pushing up the sturdy current. “I can hear him pant as if short of breath. Goodness! I hope now nothing is going to happen to him while we’re spinning along down through these old rapids. They say that whirlpool would swallow up anything; and that Old John was the only man whoever went into it, and came out alive. Whew!”

But Jack did not whisper these fears to his comrades. It was too late to change steersman now; and why spoil all their pleasure?

After all, no doubt there was not so much strength needed once they began to move swiftly along with the current, going half a mile in a couple of minutes, they had been told, though Jack doubted the accuracy of that statement at first.

Apparently the guides had overshot the mark at which they aimed; for as the canoe was turned, in the shadow of the bridge, Jack saw that the man in the bow glanced apprehensively over his shoulder while he knelt there, and immediately began to paddle furiously, as though trying to bring the boat back a little toward the American shore.

Had they gone too far, and were they speeding down in the track taken by the one daring prince of guides—a course that would actually skirt the verge of that whirlpool, of which such terrible things were said?

Jack shut his teeth hard at the thought. Then he gave himself up to the keen enjoyment of that glorious ride, when the canoe was seized upon as by invisible hands, and borne along at lightning speed.

Looking at the water alongside, foam-specked as it was, one could not believe the boat was moving at all, because both kept company. But all that was needed was for the voyager to raise his eyes, and send a look toward the shore, when he must realize the tremendous rapidity with which his frail craft was being carried along.

Things just seemed to fairly flit past, as though they were aboard a fast railway train. The boys were evidently enjoying the novel experience to the full, for their heads were constantly turning from side to side, and all seemed to be talking at once.