"Keep back," said the Professor softly. "Don't let them see us." He flattened himself in the grass and crawled to the edge of the cliff. I did the same, and we lay there, invisible from below, but quite able to see everything in the quarry. The three tramps were evidently enjoying an excellent breakfast. "This place is a regular hang-out for these fellows," Mifflin whispered. "I've seen hoboes about here every year. They go into winter quarters about the end of October, usually. There's an old blasted-out section of this quarry that makes a sheltered dormitory for them, and as the place isn't worked any more they're not disturbed here so long as they don't make mischief in the neighbourhood. We'll give them...." "Hands up!" said a rough voice behind us. I looked round. There was a fat, red-faced villainous-looking creature covering us with a shiny revolver. It was an awkward situation. Both the Professor and I were lying full length on the ground. We were quite helpless. "Get up!" said the tramp in a husky, nasty voice. "I guess youse thought we wasn't covering our trail? Well, we'll have to tie you up, I reckon, while we get away with this Crystal Pallis of yourn." I scrambled to my feet, but to my surprise the Professor continued to lie at full length. "Get up, deacon!" said the tramp again. "Get up on them graceful limbs, _if_ you please." I guess he thought himself safe from attack by a woman. At any rate, he bent over as if to grab Mifflin by the neck. I saw my chance and jumped on him from behind. I am heavy, as I have said, and he sprawled on the ground. My doubts as to the pistol being loaded were promptly dissolved, for it went off like a cannon. Nobody was in front of it, however, and Mifflin was on his feet like a flash. He had the ruffian by the throat and kicked the weapon out of his hand. I ran to seize it. "You son of Satan!" said the valiant Redbeard. "Thought you could bully us, did you? Miss McGill, you were as quick as Joan of Arc. Hand me the pistol, please." I gave it to him, and he shoved it under the hobo's nose. "Now," he said, "take off that rag around your neck." The rag was an old red handkerchief, inconceivably soiled. The tramp removed it, grumbling and whining. Mifflin gave me the pistol to hold while he tied our prisoner's wrists together. In the meantime we heard a shout from the quarry. The three vagabonds were gazing up in great excitement. "You tell those fashion plates down there," said Mifflin, as he knotted the tramp's hands together, "that if they make any fight I'll shoot them like crows." His voice was cold and savage and he seemed quite master of the situation, but I must confess I wondered how we could handle four of them.