Then some noise from the opposite side of the Moat, or, perhaps, from beyond the Pond, struck the ear of the Thing. I don't know how a spectre disappears. I never saw but that one, and since then I have lost all interest. But at any rate the Shape passed me at a long wolf's lope, making no noise and going fast. Right under my nose it slipped silently into the black deeps of the Pond. I think it sank underneath, for the next moment I could see no more than a wet head, a round, vague sphere that glistened faintly, turning this way and that, and very ghastly. The Thing was swimming, and making no noise.

Then I came to myself with a sudden revulsion. If there were, indeed, anything living on that Island of Deep Moat Grange—yet another of that hideous crew left free and alive—the sooner the world knew about it the better. I had always thought, and my father had said that the official researches in the catacombs, called after the old Cistercian Monks, had been much too summary.

The moisture came slowly back to my mouth. I was still scared, of course, but I had got over the paralysis that comes with a first surprise. If the Thing could swim, I could run, though not quite so noiselessly, as there was an abundance of brushwood which I had to traverse, while the wave undulated like oil off the creature's back, as from an otter crossing a stream. You never saw anything swim so lightly and yet so fast.

It crossed the Pond obliquely, evidently making for the entrance of the Backwater. I could not follow directly. You see, I was constrained to cross at the drawbridge. But, between ourselves, I burned the path under my feet. I have many times run fast, but never so quickly as then. Talk about second wind—second courage is worth ten of it any day; quite as real, too, though less talked about.

It seemed a dreadful long way round about, and my heart was as much in my mouth now lest I should lose It, as it had been before, lest It should find me.

But I got there just ahead.

As I expected it had turned down the long, straight cut of the Backwater, and was swimming straight toward me. Now, thought I, I will surely see what the Thing is. But I could only make out—vague, round, and shining, a head that turned this way and that in swimming.

Suddenly the speed was checked. The swimmer, whatever it might be, turned sharply, searched a little, and appeared to hesitate. I took a step and bent forward to listen. A rotten branch cracked sharply under my careless foot. There was a sort of "wallop" like a seal or sea lion turning off a spring-board into a pond. Then came the sharp click of sliding iron. A square of darkness yawned in the canal bank. Something entered, and the door shut with several jerks like machinery in infrequent usage. The Thing had vanished. I was alone with the new terror of the woods of Deep Moat Grange.

Nevertheless I had had a certain lesson some time before. I could not again be altogether deceived. It was something human, though in all probability just so much the more dangerous and cruel for that. He, or she, knew the secret of the iron door which Mr. Ablethorpe had made me enter.

There was, therefore, at least one still left of the devil's brood in their ancient haunts, and the sooner that the world was warned, the better. Or, at least, I would tell my father, and he would get together a few determined men, who would not be afraid to act according to their consciences and the necessities of the case.