In the bottom of this drain trickled a stream of water nowhere more than six inches in depth, on either side of which, for ten feet or more, lay a thick bed of debris ground small. How far the cave stretched of course he could not see, nor as yet could he discover the whereabouts of its hideous occupant, though traces of its presence were plentiful, for the sandy floor was marked with its huge footprints, and the air reeked with an abominable stink.

“Where has this evil spirit gone to?” thought Otter; “he must be near, and yet I can see nothing of him. Perhaps he lives further up the cave”; and he crept a pace or two forward and again peered into the gloom.

Now he perceived what had hitherto escaped him, namely, that some eight yards from the mouth of the tunnel a table-shaped fragment of stone rose from its floor to within six feet of the roof, having on the hither side a sloping plane that connected its summit with the stream-bed beneath. Doubtless this fragment or boulder, being of some harder material than the surrounding rock, had resisted the wear of the rushing river; the top of it, as was shown by the high-water marks on the sides of the cave, being above the level of the torrent, which, although it was now represented only by a rivulet, evidently at certain seasons of the year poured down with great force and volume.

“Here is a bed on which a crocodile might sleep,” reflected Otter, creeping a little further forward and staring at the mass of rock, and more especially at a triangular-shaped object that was poised on the top of the sloping plane, and on something which lay beneath it.

“Now, if that thing be another stone,” thought Otter again, “how comes it that it does not slip into the water as it should do, and what is that upon which it rests?” and he took a step to one side to prevent his body from intercepting any portion of the ray of light that momentarily shone clearer and pierced the darkness of the cave to a greater distance.

Then he looked again and almost fell in his horror, for now he could see all. The thing that he had taken for a stone set upon the rock-table was the head of the Dweller in the Waters, for there in it, as the light struck on them, two dreadful eyes gleamed with a dull and changing fire. Moreover, he discovered what was the object which lay under the throat of the reptile. It was the body of that priest whom Otter had taken with him in his leap from the statue, for he could see the dead face projecting on one side.

“Perhaps if I wait awhile he will begin to eat him,” reflected the dwarf, remembering the habits of crocodiles, “and then I can attack him when he rests and sleeps afterwards”; and, acting on this idea, he stood still, watching the green fire as it throbbed and quivered, waxed and waned in the monster’s eyes.

How long he remained thus Otter never knew; but after a time he became conscious that these eyes had taken hold of him and were drawing him towards them, though whether the reptile saw him or not he could not tell. For a space he struggled against this unholy fascination; then, overcome by dread, he strove to fly, back to the pool or anywhere out of reach of those devilish orbs. Alas! it was too late: no step could he move backwards, no, not to save his life.

Now he must go on. It was as though the Water Dweller had read his mind, and drew its foe towards itself to put the matter to the test. Otter took one step forward—rather would he have sprung again off the head of the colossus—and the eyes glowed more dreadfully than ever, as though in triumph.

Then in despair he sank to the ground, hiding his face in his hands and groaning in his heart.