“No.”

“What is in the water yonder?” he went on, bending over to look into the pool, for he had squatted himself very near its brink. “It moves.”

Both of us followed his gaze, instinctively, eagerly. And by Jove! as we looked, there arose the same disturbance, the same unwinding of what seemed like a shining sinuous coil, yet taking no definite shape. Again it sank, as it had risen, and a hiss of seething bubbles, and the circling rings radiating to the sides, alone bore witness to what had happened.

“I declare it’s rather uncanny,” said my companion. “Does he know what it is? Ask him.”

I put it to Ukozi. We had swum there several times, dived deep down too, nearly to the bottom, deep as it was, yet we had never been disturbed by anything. Only to-day, before his arrival, had we seen this thing for the first time—and that only once. He echoed my words, or part of them.

“Nearly to the bottom! But this place has no bottom.”

“Now you forget, father of mystery,” I said, knowingly. “It has, for we have sounded it, with a piece of lead at the end of a line.”

He looked amused, shaking his head softly.

“Yet, it is as I say,” he answered. “It has no bottom.”

Rapidly I gave Miss Sewin the burden of our conversation, and she looked puzzled. The while, Arlo, crouching a few yards off, was eyeing the witch doctor strangely, uttering low growls which deepened every time he made a movement, and still, beneath the sound I could always detect that same note of fear.