Little by little it became more distinct, until there were no longer intervals when it died away, and at last Wabigoon turned in the bow and faced his companions, and though he spoke no word there was the gleam of a great excitement in his eyes.

Rod's heart beat like a drum.

He, too, began to understand.

That moaning, whispering sound floating up the chasm was not the wind, but the far-away rumble of the third waterfall! Mukoki's voice broke the tense silence from behind.
"That the fall!" Wabigoon replied in words scarcely louder than a whisper.

There was no joyful shouting now, as there had been at the discovery of the second fall.