Soon after the boys had heard the shot a shadowy figure slipped out from among the fruit trees close in front of them and Frank called, "Webster!" The man swung around, but instead of answering he sprang backward, and Frank realized that he had almost run into the arms of one of the smugglers. The boys did not see where he went, though he made some noise, and they afterward concluded that he had mistaken them for grown men. In the meanwhile they went on again more cautiously, until at length they were stopped by a low cry and Mr. Oliver rose from the grass a few feet away. They were on the other side of the barn now and could see that the fire had got hold of it. There was no doubt that some of the logs were burning and a pile of brushwood which had been laid against them was burning fiercely. "It's spreading," said Harry. "Can't we put it out?" "No," said his father with grim quietness. "It would take time and at least a dozen wet grain bags, while it wouldn't be safe for any one to approach the light." There was something in his voice that startled Frank. "You have hit one of them?" he asked. "There's reason for believing it. Webster and I couldn't watch the four sides of the barn, and they chose the one that seemed the most unlikely. Still, as it happened, I got around quick enough." "Then what are we to do now?" Harry inquired. "Fall back on the house," replied Mr. Oliver. "I've sent Webster on, and it's no use waiting for another of them to come out into the light." The boys turned back with him, moving quickly but making no more noise than they could help, and on reaching the dwelling they found Mr. Webster standing in the kitchen. The room was dark except for the faint glow which shone out from the front of the stove, and Miss Oliver was still sitting where the boys had last seen her, with an open box of cartridges at her feet. There was, however, light enough outside, for a red glare which grew steadily brighter streamed across the clearing. "Where's the dog?" Harry asked. "I don't know," said Mr. Webster. "I let him out before I came along. I expect you're going to hear him presently." There was silence for the next six or seven minutes during which Frank heard the ticking of a clock and the crackle of knotty pinewood in the stove. He could see Mr. Oliver standing a little on one side of the open window, an indistinct figure with face and hands that showed dimly white. His pose indicated that he was holding a rifle level with his breast, and presently as the red glow behind the fruit trees grew higher and brighter the barrel twinkled in a ray of light. Then there was a furious barking and Jake laughed at the sound. "Well," he said, "they don't mean to keep us waiting." Mr. Oliver turned to the boys. "Keep clear of this window and watch the other one. You're not to fire a shot unless I tell you."