From a front room in the second story the sounds of voices came, and now and then a door opened and closed and a footstep was heard on the stairway. However, those who walked about the place seemed either going or coming, for the house gained no added population because of the men who climbed the slope at the front and, ignoring the main entrance, passed on to the second floor by a secret staircase in the wall, entrance to which seemed easy for them to find.
At the hour named three acquaintances of the reader occupied the front room on the second floor of the stone house. They were Col. Van Ellis, the military man Frank Shaw had talked with in the old house near the Culebra cut, Harvey Chester, the father of the boy Jimmie and Peter had encountered in the jungle, and Gostel, the man who had approached the two boys the night before on the lip of the great excavation.
In a rear apartment, a sort of lumber-room, devoted now to wornout and broken furniture and odds and ends of house furnishing goods, was still another acquaintance—Ned Nestor. The patrol leader had met the two lost boys at Culebra, in the company of Harvey Chester and his son, Tony, and had spent enough time with the party to learn that Pedro, the ex-servant of the Shaw home, had been seen at the Chester camp, and that he had fled at the approach of Jimmie and his chum.
The story of Gostel’s watching the cut at night, probably assisted by Pedro, and Harvey Chester standing guard, or seeming to do so, by day, had interested Ned greatly. The presence on the Isthmus of Pedro gave an extra kink to the problem. The attempt to capture the two boys, as previously told by Gastong, on the previous night, and the unmistakable anxiety of Chester to remain in their company, had led Ned to believe that at last he was getting to some of the people “high up” in the conspiracy against the canal. Surely a man of the education and evident wealth of Harvey Chester was not loitering along the Culebra cut just for the excitement there was in it. It was plain that he was there for a purpose, and the arrival of a man Jimmie declared to be Gostel had convinced Ned that the heads of the plot were not far away.
Gostel had greeted the boys heartily, expressing relief at the knowledge that they had escaped in safety from the jungle, and Chester had urged them all to accept of his continued hospitality. Nothing had been said of Gostel’s pursuit of the two boys, and Ned had reached the conclusion that Gostel did not know that his movements had been observed.
Anxious to see what Gostel really was up to, Ned had instructed the boys to remain at a hotel at Culebra or visit the Chester camp, just as they saw fit, and had followed Gostel back to Gamboa and out to the stone house, where he had managed to hide himself in the room above described without his presence on the premises being suspected. One thing, however, Ned did not know, and that was that Jimmie McGraw, full of life and curious to know what was going on, had trained on after him and was now watching the house from a thicket on the hillside.
Ned had heard a good deal of talk since hiding himself in the rear room, much of which was of no account. Men who had delivered notes and messages had come and gone. Col. Van Ellis seemed to be doing a general business there. Some of the men who came appeared to be canal workmen, and these left what seemed to be reports of some kind.
From a break in the wall Ned could hear all that was said and see a great deal of what went on in the front room. At five o’clock a tall, dark, slender man whose black hair was turning gray in places entered the front room by way of the secret stairway in the side wall. He handed some papers to Col. Van Ellis and seated himself without being asked to do so.
“What, as a whole, are the indications?” Van Ellis asked.
“Excellent,” was the short reply.