The distant sky over the lower end of the gully was shot now with weird lurid colors. In the heavy dark silence here around us, a sudden sharp puff of wind plucked at us, tossing Ama's long tawny hair.

"This way—" she added.

My arm went around her as another wind-blast thrust us sidewise, almost knocking her off her feet. Then clinging together, fighting our way in a rush of wind which now abruptly was a roar, we plunged into the depths of the yawning tunnel.


III

I must recount now what happened to Jan, as he told it to me when after a sequence of weird events, he and I were together again. When I left him crouching there close against the hull of the wrecked Roberts' ship, he lost sight of me almost in a moment. There was just the faint blob of me sliding into a shadow; and then the lowering ground down which I went hid me. Tensely he crouched, peering across the gully, listening to the heavy silence.

Two minutes, I had said; and then he must throw the rock. His hand fumbled around, found a sizable rock-chunk. He understood my purpose, of course—to divert our adversary across the gully at a moment when I might be close to jump him from the other direction.

Jan was excited, apprehensive, just an inexperienced boy. Was the crouching savage with the girl still there across the gully? There was no sound, no movement. Was it two minutes now?

He flung the stone at last and raised himself up a little with his gun leveled. The stone clattered off to the right. But it provoked no whizzing arrow. No sound of me, jumping upon my adversary.... Nothing.... But what was that? Jan stiffened. Distinctly he heard the sizzling puff of a flashgun shot. My gun! He knew it must be; it was to the left, out in the gully. And following it there was a low gibbering snarl. Faint in the distance, but in the heavy silence plainly audible.

I had been attacked! Jan found himself on his feet, with no thought in his mind save to dash to me.... He had taken no more than a few scrambling leaps on the rocks. He reached the brink of the descent. Far down and out in the gully it seemed that he could see the blur of something fighting.