"Do you mean he has left Mackinac Island for good and all?" "I didn't say that. I simply said he had gone. He is expected back here at night." "That's all right," called John, who now entered the room and joined in the conversation. "I'm glad he isn't here. It will give us a chance to rest up. It's ten o'clock in the morning now, but I feel as if I was almost ready to crawl back into bed again." "We'll feel all right by night," said Fred lightly. "I suggest that we sit around the hotel and not try to do anything very strenuous to-day." The suggestion was followed by all four boys and save for a walk about the Island they passed the hours reading or writing letters. Darkness had fallen before Mr. Button was seen by any of the four boys. Approaching him, Fred said, "We have got another letter for you, Mr. Button. It will match the one that came to me that was intended for you." Mr. Button glanced keenly at the boy as he spoke and said, "Is the letter intended for me?" "I think so," said Fred. "Where did you get it? Did it come to you through the mail as the other one did?" "No, sir, we picked it up on the shore of Western Duck Island." "You did!" exclaimed Mr. Button more strongly moved by the statement than the boys ever had seen him before. "Where is it?" "It's in my pocket," replied Fred. "We wish you would come up to our room, Mr. Button. We'll give you the letter and tell you some other things we have found out besides." Accepting the invitation Mr. Button accompanied the boys to the room which Fred and John occupied and after he had seated himself in the chair which was offered him by John, Fred at once began his story. "We found this letter, Mr. Button, as I told you. It must have dropped out of the pocket of that man on the island or else Mr. Halsey lost it. At any rate we thought it belonged either to me or to you and I guess there's no question now that it is yours." Fred handed the letter to their visitor, who at once read it through and laughing lightly thrust it into his pocket. "It matches the other one," he said, "and sounds very much as if they both were written by the same man." "We have found the man that wrote them." "Have you?" inquired Mr. Button quietly. "Yes, sir. When John and I were taken by that boat which rescued us we couldn't land until we came to Sault St. Marie. It was almost morning and we had a great time, as our clothes were wet and we left them on the boat after we had put on some duds the sailors gave us. We found we didn't have any money when we went up town and tried to get some breakfast, and when we went back to the dock we were horrified to find that the boat had gone on without us. Her next stop probably is Duluth." "And she took your clothes with her?" inquired Mr. Button, smiling as he spoke.