And then—came the tragedy. It was noon of the fourth day. From round the bend in the river we heard the unmistakable roar of rapids.

“Portage?” queried Dan of our guide.

Norton shook his head. “Shoot ’er,” he answered curtly.

A moment later we swung round the bend. Before us the banks drew suddenly closer together, and the river narrowed and shot down between granite walls. The channel was checkered with boulders, around them the tortured waters spat and hissed, flung themselves high in unavailing anger, yelled their rage in deafening uproar.

Dan and I glanced questioningly. One narrow channel we could see—perilously narrow, perilously swift. But it was too late to reconsider. Already the waters quickened beneath us, bore us on with an insidious smoothness that was belied by the speed with which the canyon walls shot by. Norton sat poised at the bow, alert, ready. Murdock and I gripped our paddles. In a moment we were in it.

With sickening speed we shot into the turmoil. The roar rang in our ears terrifyingly. Spray shot over and drenched us. We battled furiously, plunging our paddles deep as Norton signaled us. The light craft seemed to leap and bound, like a runner at the hurdles, gathering impetus at each new thrust.

Then—a rock seemed to leap up in our very path. Dan, kneeling amidships, gave a cry of terror, and plunged wildly with his paddle. The delicately-balanced boat swayed, lost for a moment its poise, slued sideways.

A splintering crash, and I found myself in the seething water.

How I lived I do not know. I was a strong swimmer, but in that blind turmoil, skill availed little. I was borne headlong. I was conscious of boulders bludgeoning me cruelly. But suddenly the waters grew quieter. I was swept into an eddy at the foot of the canyon. Somehow, I struck out weakly, and, blind, breathless, and beaten, drew myself on a gravelly bar.

How long I lay there I can only guess. Bit by bit my strength returned. I sat up. I was on the edge of a mountain meadow, through which the stream swept, still foaming and boisterous. The thunder of the canyon came to me noisily.