In this manner we must have traversed a distance of nearly twenty miles when, to my amazement, and also that of most of the canoe's crew, I think, we suddenly emerged from the tunnel-like channel that we had been navigating for something like five hours, and found ourselves once more in what was undoubtedly the main stream of the river, and so far away from the spot at which we had diverged from it that it was nowhere to be seen.
