Kwa and the Ape People by Perley Poore Sheehan

THERE was, as a matter of fact, a powerful magic in that particular phrase that Kwa had used--"Shangri Munga!"--when used in a particular way. And, unconsciously or consciously, this was the way that Kwa had used it.

The animals recognized that fact. So did Kwa himself. There was that inexpressible equivalent of a cheer that went up from all these jungle people. It was like a curious swirling magnetism--call it that; but a wave--length perhaps somewhere between sound and light, audible in a way and visible in a way.