“Cuthbert Mackenzie! I am sure it was he, Denzil!” And she pointed to the right.

I looked hard in that direction, scanning the woods right and left. By Heavens, the girl had not been mistaken. Through a rift in the foliage, nearly opposite the canoe, peered a swarthy, sinister countenance and I recognized the features of Cuthbert Mackenzie. I took aim at him, but before I could fire he was gone. My brain seemed in a whirl. I had found the clew—the fiendish clew—to the attack that threatened to cost us our lives. Bent on revenge, Mackenzie had traveled up country to intercept us on the way to the fort—to kill me, and to capture Flora. He had bribed the savages to help him, and he and his ruthless allies had been in the vicinity of our camp on the previous night.

Swiftly these things coursed through my mind. I tried to speak to Flora, but my tongue seemed to be held fast. I heard a shot—another and another. The bullets sang close to my ear.

“Down—down!” warned Gummidge.

“Keep low!” shouted Moralle and Lavigne in one breath.

My brain grew suddenly clear, but I did not heed the friendly advice. Three shots had missed me, and I knew that the canoe was jerking about too much with the current to admit of a sure aim the savages.

“Paddle on, Moralle!” I cried. “Faster—faster!”

Meanwhile I watched the right hank, hoping to get another chance at Cuthbert Mackenzie. Baptiste—brave fellow!—was on the alert with me but he was scanning the left shore, and a sudden exclamation from him drew my eyes in the same direction. Ten yards in front, on the edge of the timber, a redskin thrust his coppery face from the leaves. I fired as quickly and the savage vanished with a yell of pain.

We were almost upon the rapids, and half a minute more would see us plunged into the seething, foaming slide of angry waters. To right and left, where the jagged reef touched the forest, stood three or four painted redskins, with muskets to their shoulders. And some distance below the falls, where the water broadened and shallowed, I made out the feather-decked heads of more Indians. This was a dread and significant discovery, and I instantly perceived the trap that had been laid for us.

“Keep under cover!” I shouted at the top of my voice.