There may come times when a second counts for everything. Jack believed such an occasion was now upon them; and he acted instantly.

The man in falling forward had pushed his paddle alongside Jack. It was as plain an invitation to fill his place as could have been given.

Making one swoop the boy snatched up the stout blade, and instantly dipped it over the port side. Desperately he exerted his strength to steer the canoe away from the fatal eddies that sought to draw them still further into the vortex.

The Indian in the bow may have suspected something of what had occurred; but he dared not turn his head now, or take his attention away from the rocks ahead for even one lone second.

As for the five boys, they were all staring at the near-by whirlpool as though actually fascinated by its terrors; and not suspecting how close they were to plunging straight into its grip.

With every atom of his strength did Jack work, dipping as deeply as he could, and striving against the giant power of the mill race on which they were speeding.

The edge of the circling current was horribly close; in fact they seemed to skirt its very border, closer perhaps than even the veteran guide ever carried his cargoes of tourists, when in his prime.

Jack fairly held his breath as the crisis came. He did not know, could not tell whether they would win out or not. It was an experience that would doubtless continue to haunt the lad for a long time. Perhaps he would awaken in the night with a start and a low cry, having dreamed that once again he sat in the canoe with the dark skinned steersman fallen in a faint, and the hungry maw of the whirlpool yawning so very close on their left that one could have tossed a chip directly into it.

“Wow! wasn’t that a close shave though, boys?” shouted George, half turning his head to look at his mates; and then following his words with another cry: “Look at Jack, would you? Great governor! what happened?”

And as the others twisted around to look, they were amazed to discover that Jack was wielding that paddle like a veteran, his face as white as chalk, and his eyes staring; but his teeth firmly pressed together, with a look of grim determination on his young face.