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.