For the rare sounds in the forest were unlike any sounds he had heard before.

Three or four times during the day a burst of loud, hollow, confused laughter sounded high up among the trees; but he saw nothing, although most likely the creature that had laughed saw him plainly enough from its hiding-place in the deep shadows as it ran up the trunks of the trees.
[Illustration: ] At length he came to a river about thirty or forty yards wide; and this was the same river that he had bathed in many leagues further down in the open valley.

It is called by the savages Co-viota-co-chamanga, which means that it runs partly in the dark and partly in the light.

Here it was in the dark.

The trees grew thick and tall on its banks, and their wide branches met and intermingled above its waters that flowed on without a ripple, black to the eye as a river of ink.