"MacWilliams says he knows every foot of land along the railroad," said Stuart, "and he is sure the place Burke means is the old fortress on the Platta inlet, because—"

"It is the only place," interrupted MacWilliams, "where there is no surf. They could run small boats up the inlet and unload in smooth water within twenty feet of the ramparts; and another thing, that is the only point on the line with a wagon road running direct from it to the Capital. It's an old road, and hasn't been travelled over for years, but it could be used. No," he added, as though answering the doubt in Clay's mind, "there is no other place. If I had a map here I could show you in a minute; where the beach is level there is a jungle between it and the road, and wherever there is open country, there is a limestone formation and rocks between it and the sea, where no boat could touch."

"But the fortress is so conspicuous," Clay demurred; "the nearest rampart is within twenty feet of the road. Don't you remember we measured it when we thought of laying the double track?"

"That is just what Burke says," urged Stuart. "That is the reason he gives for leaving only three men on guard—'I think more than that number might attract attention to the spot, as they might be seen from the ore-trains.'"

"Have you told any one of this?" Clay asked. "What have you done so far?"

"We've done nothing," said Stuart. "We lost our nerve when we found out how much we knew, and we decided we'd better leave it to you."

"Whatever we do must be done at once," said Clay. "They will come for the arms to-night, most likely, and we must be there first. I agree with you entirely about the place. It is only a question now of our being on time. There are two things to do. The first thing is, to keep them from getting the arms, and the second is, if we are lucky, to secure them for ourselves. If we can pull it off properly, we ought to have those rifles in the mines before midnight. If we are hurried or surprised, we must dump them off the fort into the sea." Clay laughed and looked about him at the men. "We are only following out General Bolivar's saying 'When you want arms take them from the enemy.' Now, there are three places we must cover. This house, first of all," he went on, inclining his head quickly toward the two sisters, "then the city, and the mines. Stuart's place, of course, is at the Palace. King must take care of this house and those in it, and MacWilliams and Langham and I must look after the arms. We must organize two parties, and they had better approach the fort from here and from the mines at the same time. I will need you to do some telegraphing for me, Mac; and, King, I must ask you for some more men from the yacht. How many have you?"

King answered that there were fifteen men still on board, ten of whom would be of service. He added that they were all well equipped for fighting.

"I believe King's a pirate in business hours," Clay said, smiling. "All right, that's good. Now go tell ten of them to meet me at the round-house in half an hour. I will get MacWilliams to telegraph Kirkland to run an engine and flat cars to within a half mile of the fort on the north, and we will come up on it with the sailors and Ted, here, from the south. You must run the engine yourself, MacWilliams, and perhaps it would be better, King, if your men joined us at the foot of the grounds here and not at the round-house. None of the workmen must see our party start. Do you agree with me?" he asked, turning to those in the group about him. "Has anybody any criticism to make?"

Stuart and King looked at one another ruefully and laughed. "I don't see what good I am doing in town," protested Stuart. "Yes, and I don't see where I come in, either," growled King, in aggrieved tones. "These youngsters can't do it all; besides I ought to have charge of my own men."