"There is, ma'am; there is; thirteen of 'em." "Thirteen what?" But Ketch only shuddered again, and would say no more. Aunt Amanda noticed that instead of going straight onward past the door of Low Dudgeon, the pirates led the file in a wide course away from it, along the edge of the clearing, as if to avoid coming near to it; and when the procession had thus skirted the clearing and entered the forest again on the other side, leaving the low tower behind, a sigh, as if of relief, went up from Ketch and all the other pirates; except, however, from Captain Lingo himself, who appeared to be wholly indifferent. "How much further?" said Aunt Amanda to Ketch. "About a mile, ma'am," said he. The last mile of their journey was a long mile, and it was traversed in perfect darkness. The moon had not yet risen. Not a word was spoken, and there was no sound except the pad of the mules' feet and the breaking of twigs and branches as the travellers pushed their way through. The prisoners were in a state of greater nervousness and anxiety than before, and as they neared the place where their lives were to be disposed of in one way or another, their sense of uncertainty became almost unbearable. When it seemed that they must be close to the fateful place, the procession suddenly halted, and at the same instant the screech of a parrot startled the silence and made each of the prisoners jump. "It's only the captain," said Ketch. "It's a signal." Immediately, as if in response, there came from a distance in advance the note of a cuckoo, three times repeated. The procession moved forward. A moment or two later, the whole company came forth from the forest under the stars, and stood on the edge of a wide round clearing, grown high with grass and weeds. In the midst of this clearing rose a tower. "High Dudgeon," said Ketch over his shoulder. This also was a round tower, built of stone; but it was very tall, much taller than the highest trees, and from the top there must have been a view of all the surrounding country, even as far as the hill within which was the treasure cave; from the number of deep and narrow slits which served as windows it must have been six or seven stories high. The top of the tower was flat, with battlements around the rim. As a fortress, it seemed to be impregnable; as a dwelling-house, it was very dismal indeed. It was totally dark. The captives trembled at the thought of being imprisoned in such a place. The wayfarers proceeded in their single file directly to the great iron-bound oaken door of the tower, and those who were mounted got down. Ketch assisted Aunt Amanda and Freddie to alight, and having done so he took charge of the mules and led them away. Captain Lingo took from his breeches pocket a small key and unlocked the door. "Be so kind as to enter," he said, and made way for the captives and his men.