only thing that is watching us, watching us and waiting."
Some moments passed, perhaps minutes, in expectant waiting, our glances incessantly darting about the cavern, through which the light-mist was moving in troubled, writhing streams, the nebulous, spectral glow of it seeming to enhance the fearsome gloom of that dreadful place.
"I see nothing," Rhodes said at last, "and the cavern is as silent as a tomb."
"But we are seen. And, if we don't get out of this, it may be our tomb."
"I don't think it's so bad as that. But the Dromans are signing to us to come on—let us hope to a place more pleasant than this one."
I had turned to quit the spot, my look, however, lingering in that direction whence had come those low, mysterious sounds—a direction right opposite to that in which the moving eyes had shone. And scarcely had I taken a step forward when I fetched up, cried out and pointed.
"See that! See it moving?"
A large fungous tree, its form one indescribably grotesque, was quivering. It began to shake violently. Some heavy body, hidden from our eyes, was moving there—moving toward us.
Of a sudden the tree was thrust far over, there was a squashy, sickening sound, then down it came, the spot where it fell involved in a cloud of phosphorescence, which thinned and faded in the air like dust or mist as it settles.
"Shades of the Gorgons," I cried, "what is in there?"
A sound from Rhodes turned me round on the instant.
"The eyes again!" he cried. "There they are. Have we at last got into Dante's Inferno itself?"
I was beginning to think that we had got into something worse.
Yes, there the eyes were—nearer this time. And yet the thing itself was hidden in the shadows.
Rhodes raised his revolver, rested it on his left arm, took careful aim and fired.
The report seemed to bellow like thunder through the cavern. There was a scream from the Dromans, none of whom, save Drorathusa, had. ever heard a firearm before; and I doubt that even Drorathusa knew what had killed her demon. On the instant, whilst the report of the weapon and the cry of the Dromans were ringing in our ears, came another sound—came a shriek high, piercing, unearthly, one that seemed to arrest and curdle the very blood in our hearts.
It sank, ceased. But almost instantly it came again, rose until the air seemed to quiver to the sound.
The effect upon the Dromans was most sudden and pronounced.
A nameless fear and horror seized upon me as I saw it.
They started from the spot as if in a panic, signing to us with frantic gestures to follow.
I started; but Rhodes, for some inexplicable reason, stood there, his look fixed on the spot whence came those horrible, demoniacal shrieks. The eyes had disappeared, but, in almost that very instant that I turned, they shone again. I gazed at them as though in fascinated horror, forgetting for the moment that there was something behind me.
Up the eyes rose. A black thing was visible there in the darkness, but its shape was amorphous, mysterious. Up the eyes rose, seeming to dilate, and the fire in them grew brighter and brighter, became so horribly unearthly that I began to winder if I were going insane. The eyes swayed, swayed back and forth for some moments, then gave a sudden lurch into darkness. The shrieks broke, then came again, more hor-
