Having advanced a distance of about three short city blocks, it seemed to Bubbles as if the passage had opened suddenly into a room. If so, he had to thank instinct for the knowledge, since he could see but an inch in the blackness. He had the feeling that walls were no longer passing near him, and, groping cautiously this way and that, he found it to be fact and not fancy. During these gropings he lost his sense of direction, and, after considering the matter at some length, he concluded that the time had come to flash his torch. But first he listened for a long time. At last, satisfied that he was alone, his thumb began to press against the switch of his torch. A shaft of light bored into the darkness, and he saw two wildly bearded men, who sat with their backs against a wall of living rock and looked straight at him. It was as if he had been suddenly frozen solid, so dreadful was his surprise and horror, but the men with the wild heads showed no emotion. They had a pale, tired, hopeless look; and though one was dark and one blond, this expression, common to both, gave them an appearance of being twin brothers. They had gentle soft eyes in which was no sign of surprise or agitation. It seemed as if they were perfectly accustomed to having light suddenly flashed into them. One of the men leaned forward and began to run his hand this way and that over the hard dirt floor. "Lost something?" said the other suddenly. "Dropped my plug," said the first in a dull weary voice, and he continued to feel for and repeatedly just miss a half-cake of chewing-tobacco. Bubbles could see it distinctly, and another thing was clear to him: the men were both blind. With this knowledge certain frayed and tattered fragments of courage returned to him, and, what was of much greater importance, his presence of mind. The excavation in which he stood was nearly forty feet square. His torch showed him the passage by which he had entered, and opposite this a flight of steps leading sharply upward. Here and there, leaning against the walls, were picks and shovels and other tools used in excavating. Near the centre of the passage was a tall pile of dirt and loose stones, together with two small wheelbarrows of sheet-iron. Just as Bubbles had ascertained these facts and got himself into a much calmer state of mind, he had a fresh thrill of horror. The two blind men sighed, and as if moved by a common impulse got up, and the little boy saw that, like Blizzard, the beggar, they had no legs. With perfect accuracy of direction they turned to the great pile of dirt, and taking up two shovels which leaned against it began to fill the two little wheelbarrows. They labored slowly as if time was of no moment, as if the work in hand was a form of punishment instead of something that it was intended to complete.