"Give it up. Evidently he isn't a tramp, though he stays in a place where there are plenty of the Knights of the Road." The boys increased their pace, and were soon on the main road leading to the Preakness house, and about a mile away from it. "We'll soon be there now," remarked Jack. "Then we'll see if we can find that man." As he spoke, the lad put his hand in his pocket, and, a moment later, he uttered a startled cry. "What's the matter?" asked Mark, in some alarm. "Matter? Why, gee whiz! If I haven't forgotten to send that telegram Professor Henderson gave me! It's to order some special tools to take along on our trip to the moon. They didn't come, and the professor wrote out a message urging the factory to hurry the shipment. He gave it to me to send, just before the accident to the motor, but when that happened it knocked it out of my mind, I guess. I stuck the telegram in my pocket, and here it is yet," and Jack drew forth a crumpled paper. "Wouldn't that make you tired?" he asked. "It's important, and ought to go at once. The professor won't like it." "I'll tell you what to do," suggested Mark, after a moment's thought. "The telegraph office isn't so far away from here. You can cut across lots, and be there in fifteen or twenty minutes. Tell 'em to rush the message, and it may be in time yet. Anyhow, we're going to be delayed because of the accident to the motor, so it won't make so much difference. But come on, let's start, and we can hurry back." "I guess that's the best plan," remarked Jack dubiously, for he did not fancy a half-hour's tramp across the fields and back again. Then, as he thought of something else, he called out: "Say, Mark, there's no use of both of us going to the telegraph office. I'll go alone, as it's my fault, and you can stay here, and watch to see if that strange man appears on the scene. I'll not be long, and you can wait for me here." "How would it be if I went on a little nearer to the Preakness house?" asked Mark. "I can meet you there just as well as here, and something may develop." "Good idea! You go on, and when I come back, I'll take the road that leads through the old slate quarry, and save some time that way. I'll meet you right near the old barn that stands on the Gilbert property, just before you reach the Preakness grounds." "All right; I'll be there, but don't run your legs off. We're out for all day, and there isn't anything that needs to be done at home, or around the projectile, so take your time." "Oh, I'll not go to sleep," declared Jack. "I want to see if we can't solve the mystery of the man who writes such queer notes." Jack started off across the fields at a swift pace, while Mark strolled on down the road, in the direction of the old Preakness house. He was thinking of many things, chiefly of the wonderful journey that lay before them, and he was wondering what the moon would look like when they got to it.