Now Carter knew from a certain source that he was in the vale of Pnoth, where crawl and burrow the enormous Dholes; but he did not know what to expect, because no one has ever seen a Dhole or even guessed what such a thing may be like. Dholes are known only by dim rumour, from the rustling they make amongst mountains of bones and the slimy touch they have when they wriggle past one. They cannot be seen because they creep only in the dark. Carter did not wish to meet a Dhole, so listened intently for any sound in the unknown depths of bones about him. Even in this fearsome place he had a plan and an objective, for whispers of Pnoth were not unknown to one with whom he had talked much in the old days. In brief, it seemed fairly likely that this was the spot into which all the ghouls of the waking world cast the refuse of their feastings; and that if he but had good luck he might stumble upon that mighty crag taller even than Throk's peaks which marks the edge of their domain. Showers of bones would tell him where to look, and once found he could call to a ghoul to let down a ladder; for strange to say, he had a very singular link with these terrible creatures.