It was intangible, yet I felt there was something about that belonged to human beings.

Again I came to an upright position, peered in every direction and listened.

It was then discovered what it was that had so affected me.

It was the smell of smoke which the breeze was gently carrying up the river.

I pushed down on my course with all my strength in hope of finding the fire, and on rounding a sharp bend was rewarded by seeing a thin, blue streak curling up from the mountain side.