There now began a climb of interminable length in utter blackness: made almost impossible by the monstrous size of the steps, which were fashioned for Gugs, and were therefore nearly a yard high. Of their number Carter could form no just estimate, for he soon became so worn out that the tireless and elastic ghouls were forced to aid him. All through the endless climb there lurked the peril of detection and pursuit; for though no Gug dares lift the stone door to the forest because of the Great One's curse, there are no such restraints concerning the tower and the steps, and escaped ghasts are often chased, even to the very top. So sharp are the ears of Gugs, that the bare feet and hands of the climbers might readily be heard when the city awoke; and it would of course take but little time for the striding giants, accustomed from their ghast-hunts in the vaults of Zin to seeing without light, to overtake their smaller and slower quarry on those cyclopean steps. It was very depressing to reflect that the silent pursuing Gugs would not be heard at all, but would come very suddenly and shockingly in the dark upon the climbers. Nor could the traditional fear of Gugs for ghouls be depended upon in that peculiar place where the advantages lay so heavily with the Gugs. There was also some peril from the furtive and venomous ghasts, which frequently hopped up onto the tower during the sleep hour of the Gugs. If the Gugs slept long, and the ghasts returned soon from their deed in the cavern, the scent of the climbers might easily be picked up by those loathsome and ill-disposed things; in which case it would almost be better to be eaten by a Gug.