"Scarcely here, before five in the morning, Watty," said Adam, with a faint smile. "It is a dark and gloomy retreat this." He spoke the truth. They had now reached a very deep and narrow part of the glen, the sides of which rose precipitously from the edges of the stream. These abrupt heights were so densely covered with trees, chiefly those dark and gloomy firs common to the mountainous portions of Scotland, that they looked like a solid and impenetrable mass. The water, though narrow, was very deep, and made a hoarse and hollow roaring as it rushed among its rough boulders, which looked as if they had become detached from the rocky heights above and rolled into the bed of the stream. The light admitted from the narrow space between the heights was very insufficient, and only seemed to add to the gloom. Even in summer the sunshine never penetrated the dark retreat, consequently the common wild flowers did not bloom, although ferns and mosses of rich and varied hues and rare and delicate form grew in beautiful luxuriance. "D’ye see ony place whaur a body micht hide?" queried Watty, with a twinkle in his eye. "Faith, Watty, I believe anybody might be safe enough where we are standing at this moment. No mounted pursuer, at least, could reach this spot," answered Adam Hepburn. "Weel, follow me as best ye can, for there’s nae road, no’ even a sheep-track, to guide ye," said Watty and, immediately plunging into the thicket on the left, he began to scramble up the face of the steep. It was with some difficulty that his companion followed, but, by swinging himself up by the strong undergrowth, he managed to keep Watty in sight. At length Watty altogether and mysteriously disappeared, and, though he called out to guide his companion to his whereabouts, Adam could not discover him. It was intensely dark, and there was scarcely room to stand upright, so densely did the trees grow together. Presently Watty appeared again, and then Adam saw that he stood in front of an overhanging bank almost concealed by long grass and bracken. "Crawl in efter me," cried Watty, and, getting down on his hands and knees, he crept under the bank and disappeared. Adam followed his example, and, as Watty immediately struck a light, he saw, to his astonishment, that he was in a roomy cavern, where he could stand upright with the greatest ease. "Well, Watty, this is a splendid place, and will doubtless be invaluable to us," he exclaimed. "It is well-nigh impossible that any one should discover this. But tell me, how many in Inverburn could point it out?" "No’ a leevin’ soul but mysel’. I’ll tell ye wha shewed it to me, auld Robbie Harden, mony a year afore he deed, an’ I never telt a cratur," Watty assured him, solemnly. "Ah, that is good! Well, Watty, I am certainly obliged to you for bringing me here," said Adam. "The thing is, I hope I can make my way to it again by myself."