"I fancy that they now know we are here," said Obed, who loved to talk, "and that we have not been demolished by the several tons of rock that they have sent down from above. A shot to the wise is sufficient. Keep down, Ned! Keep down!" From a point sixty or seventy yards away Mexicans, lying among the trees or in the undergrowth, suddenly opened a heavy fire upon the rocky fort. The Mexicans were invisible but jets of smoke arose in the brush. Bullets thudded on the log or stones, or upon the stone wall above the two, but both Ned and Obed were sheltered well and they were not touched. Nevertheless it was uncomfortable. The impact of the bullets made an unpleasant sound, and there was always a chance that one of them might angle off from the stone and strike a human target. Obed however was cheerful. "They're wasting good ammunition," he said. "They'll need that later on when they attack the Texans. After all, Ned, we're serving a good purpose when we induce the Mexicans to shoot good powder and lead here, and not against our people." Encouraged by the failure of the besieged to reply to their fire the Mexicans came closer and grew somewhat incautious. Ned saw one of them sheltered but partially by a bush and he fired. The man uttered a cry and fell. Ned saw the bush moving and he hoped the man was not slain, but he never knew. The volleys from the Mexicans ceased, and silence came again in the woods. Wisps of smoke floated here and there among the trees, but a light wind soon caught them and carried them away. Ned and Obed, rolling into easier positions, talked cheerfully. "I don't think they'll try to rush us," said Obed. "The Mexicans are not afraid to charge breastworks, but they'll hardly think we two are worth the price they would have to pay. Perhaps they'll try to starve us out." "And that they can't do because we have provisions for several days." "But they don't know it. Nor do we want to stay here for several days, Ned. Texas is calling to us, and we should be traveling northward instead of lying under a rock besieged by Mexicans." But they were compelled anew to make heavy drafts upon their patience. The Mexicans kept quiet a long time. Finally a shot fired from some high point grazed Ned's cap, and flattened against the rock behind him. The boy involuntarily ducked against the earth. Obed also lay lower. "Some Mexican must have climbed a tree," said the Maine man. "He's where he can look over our fortifications and that gives him an advantage. It also gives him a disadvantage because it will be harder for him to come down out of that tree unaided than it was for him to go up in it. We'll stick as close as we can under the log, until he sends in the second shot."