Greg's instructions to Pa Simmons were to stick to his man and report again in an hour, or as soon thereafter as he was able. Greg repeated the matter of his report to Estuban. "Going to Washington to see the President!" cried he, perplexed. "Who is Yew-neth?" asked Greg. "Evidently intended for Nunez, the Managuayan minister at Washington, and one of de Socotra's creatures of course." Estuban was in a study. "What do you make of it?" asked Greg. "I believe I'm beginning to see what he's up to," Estuban replied slowly. "It's a devilish scheme, worthy of de Socotra!" "You mean he's going to impersonate Bareda when he sees the President?" "Exactly! Not content with murdering my poor friend he intends to blacken his memory. Nunez will introduce him as Antonio Bareda. The visit will be reported in the newspapers--Bareda sees the President, and the news will be cabled to Managuay. What de Socotra will tell the President one can guess; it will certainly not be anything that will lead him to take action in Managuay. Perhaps that will be reported in the papers too: 'Bareda tells the President Managuay is happy and contented under the present regime!' In any case when Bareda fails to return to Managuay his poor followers, who are so anxiously hanging on the result of this visit, will believe that their champion has betrayed them. How simple!" "How devilish!" added Greg. Estuban said: "De Socotra must be arrested before he gets on the train." Greg thought anxiously of Amy. "That won't do you any good," he said quickly. "You couldn't prove in advance that he intended to impersonate another." "I could prove the murder." "Not without Señorita de Socotra. And she won't testify against him." "Then must he go free?" cried Estuban stormily. "No. Let us get the little black book from him and he is helpless. You could carry that to the President yourself." "How do you purpose getting hold of it?" "I don't know yet. I have four hours before train time. I'll find a way. At least I know now that it is on his person." "Go ahead and see what you can do. But if you fail I must hold myself free to act. I will be on the train on which he travels to Washington." "But he must know you," said Greg. "I shall be disguised." This gave Greg an idea. "Do you know anything about disguises?" he asked eagerly. "Oh, yes," said Estuban smiling grimly. "That's a very necessary part of a conspirator's work in Managuay." "Could you disguise me?" "What as?" "A shabby old cabman." "That oughtn't to be hard with the examples we have before us down here." "Good! I have to meet a man up-town at two forty-five. You get together what materials you need, and I'll be back at the yard in an hour."