"The fact is, Jack," he went on to say, "I wouldn't want to have anybody hear what I'm going to tell you now. It certainly is a shame how I've muddled this thing up, and I guess I deserve all I'm getting in the shape of worry. It's going to be a lesson to me, I give you my word on that, Jack." They were trudging along in company when Big Bob said that. Of course such talk could only excite Jack's natural curiosity still more. He began to understand that whatever the other had been searching for was not his own property, for he was hardly the kind of fellow, inclined to be careless, and free from anxiety, to let such a personal loss bother him greatly. Presently the pair found themselves in Jack's particular room, which he, like most boys of the present day, liked to call his "den." It was an odd-shaped room for which there had really been no especial use, and which the boy had fitted up with a stove, chairs, table and bookcases, also covering the walls with college pennants, and all manner of things connected with boys' sports. Jack closed the door carefully. "Pick your chair, Bob, and I'll draw up close to you," he said, briskly, as though bent on raising the other's drooping spirits without any delay, just by virtue of his own cheery manner. Bob looked as though he had lost his last friend. He sighed and then started to tell just what ailed him. "Seems like I've grown three years older since I suddenly failed to remember about that particular letter father gave me to be sure to post before the afternoon mail went out. I had some others, you see, two of my own, and three that Mom gave me. I can recollect shoving them in the shute one by one; but for the life of me, Jack, I can't say positively that the one going across to England was with the bunch. Oh! it gave me a cold chill when I first had that awful thought I'd lost it on the way. I remembered pulling something out of my pocket when crossing that shortcut path, and that's why I hurried there with my light, hoping to discover it in the grass." Jack understood what lay back of this. He chanced to know Bob's father was reckoned a very stern man, and that he had grown weary of Bob's customary way of forgetting things, or doing them in a slipshod fashion. He even knew that Mr. Jeffries had laid down the law to his son, and promised to punish him severely the next time he showed such carelessness. "It's too bad, Bob, of course it is, but then don't despair yet," Jack told the other boy. "There is always a good chance that you did put that particular letter in the post-office. We'll try to find out if Mr. Dickerson, the postmaster, or his assistant, chanced to notice a letter addressed to England. It must have been of considerable importance, I take it from what you've said already."