"Then what brought you here--lookin' fer Abe?" It was now Roger's turn to be surprised. "Why do you ask that?" he questioned. "I came because I want to have a talk with him, and maybe get him to help me look for a lost mine." "Well, I never!" gasped Mrs. Carmody, and looked more bewildered than ever. "Isn't Mr. Blower here?" asked Dave. A sudden idea had sprung into his mind. "Of course he isn't here. I--I--don't understand this at all--really, I don't." "Don't understand what?" asked Roger. "Your bein' here, after the letter Abe sent yesterday afternoon. Didn't you say your name was Roger Morr?" "Yes." "Then you went off with Abe, didn't you?" "Me?" cried Roger. "Why, I have never seen him as yet." "Never seen him!" gasped Mrs. Carmody. "Well, I never! Of all the queer things! What can it mean?" And she walked to a chair on the stoop and sank down heavily. CHAPTER XV AT ABE BLOWER'S HOME The boys saw at once that something was wrong. Mrs. Carmody was completely bewildered, and being old, had no easy time of it to collect her wits. "Do you feel faint?" asked Dave, kindly. "Can I get you a glass of water?" "No, I'll be all right in a minute. But this beats all, it sure does!" replied the old lady. "Abe wrote that he was going off with a Roger Morr to look for a lost mine, and here you are lookin' for Abe. It sure is a puzzle." "He wrote that he was going off with me?" ejaculated the senator's son. "He said Roger Morr. If that's your handle----" "It certainly is." "This must be Link Merwell's work!" cried Dave. "Perhaps he met Blower----" "And impersonated Roger," finished Phil. "Would he do that?" questioned the senator's son. "Would he dare?" "He would, if he thought he could get away with the trick," replied Dave. He turned to Mrs. Carmody. "Would you mind letting us see the letter Mr. Blower sent you?" "Sure. I'll get it. I left it on the table," was the answer, and, getting up, the old lady went into the house. "Come in," she invited. In her younger days she had been used to the rough life of a pioneer and she did not stand on ceremony. The boys went in, and presently Mrs. Carmody brought forth a letter written in lead pencil on a half-sheet of note paper. It ran as follows: "DEAR KATE: "You remember I tole you about Maurice Harrisons sister, who was married to a seanatour of the government. Well, his son, Roger Morr has come on to look for that lost mine--wants for me to go on a hunt with him to onse--so as it is good money I am going--start to nite in a hour--you git Nell Davis to stay with you her an Ben I wont be gone morn a weak or to. ABE." "That's the letter Abe sent me yesterday," announced Mrs. Carmody. "You see he says Roger Morr, the son of the senator. If that's you, what does it mean?" and she looked at Roger.