"That's all right," said the agent heartily, "I am pleased to have been of any assistance to you. But I will not keep you, for I know you are anxious to see how things are at camp. So-long, and good luck to you." A minute later Charley was in the truck and driving out on the dirt road at a dangerous rate of speed, for before him he could see the sharp cut of wagon tires in the soft earth. About three miles from camp the wagon tracks left the road, and, as far as the lad could see from the car, continued at a right angle to it. Somewhat relieved by this discovery, he reduced his speed and drove into camp at an easy gait. Much to his delight, he found everything going on as usual, dinner cooking in the cook tent, the machine busily digging, and the graders leveling off close behind it. After a little chat with Chris, the lad retired to his tent, where he rested until his chums and the men came trooping in to dinner. After dinner was eaten, Charley called a council of war of his chums, the two engineers off duty, and Bossie the fireman. He told them of all he had learned during his trip. "Of course I may be making a mountain out of a mole hill," he said, in conclusion. "Those men may be only a party of hunters out for a good time, but, from what we have already met with, it will be well to be on our guard until we are sure of the fact. We cannot tell in what way or when we will be made to suffer. I want every man--Spaniard as well as American--to be constantly on the watch for any signs of trouble. You, Bossie, explain to your countrymen just how things stand, so that none of them will be taken unawares. Now, have any of you any suggestions to offer?" "I think we ought to move camp as soon as possible," said McCarty promptly. "It's a good two miles from here to the machine now, and the distance is growing greater every day. Of course, it does not make so much difference in the daytime, but, with an enemy around, it makes it risky for the men going back and forth at night." "You're right," Charley agreed. "We had better get an early start and move camp to-morrow morning to a place about a quarter of a mile ahead of the machine. I noticed a knoll of good, high sloping ground there. When you go out, McCarty, have one of the dynamiters set fire to the grass there, so that the ground will be bare for the pitching of our tents. We don't want to run any chance of being burnt out." "I don't think we on the machine run so very much danger," observed Bratton; "not if we keep a good watch out. It is all steel, and, in case of attack, we can call the ground men aboard and keep the platform revolving fast. No one can then climb aboard, and the boiler and machinery will give pretty good protection, while we can use our guns from the platform to pretty good advantage." "Good idea," approved McCarty. "I will adopt that plan and tell Kitchner about it when I go out."