through the woods seemed to lead up to it, so far as I could make out in that obscurity; but there was no trace of the building to which it led. And when I saw that, I gave up. Something told me I should find out: no more; perhaps I had some shaken sense that there were things past finding out. I retraced my steps, descending the hill as best I might; but when I was again swallowed up in that leafy sea, something happened that, for an instant, turned me cold as stone. An unearthly noise, like long hooting laughter, rang out in vast volume over the forest and rose to the stars. It was no noise to which I could put a name; it was certainly no noise I had ever heard before; it bore some sort of resemblance to the neighing of a horse immensely magnified; yet it might have been half human, and there was triumph in it and derision. "I will tell you one more thing I learnt before I left those parts. I left them at once, partly because I really had an appointment early this morning, as I told you; partly also, I think, because I felt you had the right to know at once what sort of things were to be faced. I was alarmed when I thought your friend was tormented with imaginary bogies; I am not less alarmed if he had got mixed up with real ones.