"One of them," Leroy answered, "was tall, slender, dark; with long straight hair and eyes like a snake. I noticed, too, that he had a habit of moistening his lips with the end of his tongue, and that made me think of a snake thrusting out his tongue. I got a shot at the other fellow, but not at this one."
Gates and Ned looked at each other with nods of mutual understanding. This was a pretty good description of the man who had just stood before the door of that room. Then the lieutenant turned to Jimmie.
"You asked a moment ago," he said, "what the fellow wanted here. Now I think I can tell you. He wanted to confirm his suspicions that the four of us axe working together. He has been sleuthing about the corridors all the morning, watching me; and his mission to this room was to make sure that my business in San Francisco is with Ned—that we are working together."
"He's sure doing a lot of Sherlock Holmes stunts," Jimmie declared. "And I reckon he's next to his job, for he appears to have inspected all the points of interest, from the field where the Nelson is to the room where the plans are being made."
"Yes," Leroy said, his manner showing apprehension as well as anger, "but how the Old Scratch did he get his knowledge, of what, we are about to do? I thought no one in the West knew except us four. And what's he trying to do, anyway? What difference does it make to him if we do go to South America in an aeroplane?"
"I have a notion," Gates replied, "that he objects to your going in an airship because you will make such swift time. Let me tell you something more about this case. Then you will be able to understand why efforts may be made to prevent your going to South America, in an airship or in any other way."
"It's just the airship they've been after so far," Leroy interrupted. "They haven't troubled us—and they'd better not!"
"I imagine," said the lieutenant, gravely, "that their activities will broaden out as they get warmed up to their work. Understand? What I mean is this: You boys are risking your lives in undertaking this mission. You will be followed and spied upon from the minute you leave San Francisco, and the chances will be all against you when you reach your field of operations. Even the Government cannot protect you in your undertaking, for the Government is not supposed to know anything about this case."
"We are to do something by stealth, then, which the diplomats of the
State department are too cautious to undertake?" asked Ned.
"That is it exactly," was the reply. "If the State department should take cognizance of the situation down there and make any sort of a demand, war would be certain to follow in case the demand was denied, which it would be. Therefore, the State department does not wish to make a demand. Still, the American who is in trouble must be protected. You are to go and get him out of his dungeon, or wherever he may be, and the Department of State will wink at what you do and look innocent."