Following the example of his associates, Percy draped his clothing over his soap-box and the lower end of his bunk, then blew out the lamp and turned in, barking his shins as he did so. He found his couch anything but comfortable. A single blanket between one's body and a board does not make the board much softer. Neither is a tightly rolled sweater an exact equivalent for a feather pillow. Further, the comforter over him was none too warm, as two windows, opened for ventilation, allowed the cool ocean breeze to circulate freely through the cabin. They also admitted numerous mosquitoes, which sung and stung industriously. The hours of darkness dragged on miserably. Percy dozed and woke, only to doze and wake again. An occasional creaking board or muttered exclamation told that, like himself, his mates were not finding their first night one of unalloyed comfort. Bare feet struck the floor. A match scraped, and Percy saw Jim gazing at the alarm-clock. "What time is it?" groaned Budge from above. "Only ten minutes to twelve." "Gee! I wish it was morning." "Me too!" complained Stevens from the darkness aloft. Percy echoed the wish, silently but fervently. And then in an instant all their discomfort was forgotten. Bursting through the open window, a sudden sound shattered the midnight stillness. _Spang!_ IV MIDNIGHT MARAUDERS There was no mistaking that sharp, whip-like report. It was the crack of a revolver! Breaking the silence at a time when they had felt certain that the nearest human being was miles away, the sound had a startling effect on the five boys. Not one but felt a thrill of apprehension, almost of dread. Who besides themselves was astir at so late an hour on that lonely island? Why? The weapon that produced the report must have been aimed at something. What? For a moment they remained silent, breathless. _Spang!_ A second shot, distant but distinct, rang out from beyond the brow of the bank behind the cabin. Spurling sprang from his bunk. "Boys!" he shouted. "Somebody's after those sheep! Turn out!" Hurriedly he began dressing. The other four followed his example, fumbling with clumsy fingers in the darkness. Nemo gave a short, sharp bark. "Quiet, boy!" ordered Jim; and the dog subsided, growling. Percy experienced a peculiar shakiness; but he dressed with the others. Out here were no policemen or other officers to enforce the laws. Whatever was done they must do themselves. Jim, his first excitement over, was cool as usual. "All dressed, fellows?" he inquired, as calmly as if the pursuit of midnight thieves was a common incident. Everybody was ready. "Going to take the dog?" asked Throppy. "No! Leave him here! He might bark when we didn't want him to." "Here's the gun!" volunteered Lane.