"Because, sir, he is such a mysterious little sacket," replied Cathro, testily, "and so clever at leading you into a hole, that it's not chancey to meddle with him, and I could see through the corner of my eye that, for all this woeful face, he was proud of it, and hoped I was taking note. For though sometimes his emotion masters him completely, at other times he can step aside as it were, and take an approving look at it. That is a characteristic of him, and not the least maddening one."

"But you solved the mystery somehow, I suppose?"

"I got at the truth to-day by an accident, or rather my wife discovered it for me. She happened to call in at the school on a domestic matter I need not trouble you with (sal, she needna have troubled me with it either!), and on her way up the yard she noticed a laddie called Lewis Doig playing with other ungodly youths at the game of kickbonnety. Lewis's father, a gentleman farmer, was buried jimply a fortnight since, and such want of respect for his memory made my wife give the loon a dunt on the head with a pound of sugar, which she had just bought at the 'Sosh. He turned on her, ready to scart or spit or run, as seemed wisest, and in a klink her woman's eye saw what mine had overlooked, that he was not even wearing a black jacket. Well, she told him what the slap was for, and his little countenance cleared at once. 'Oh' says he, 'that's all right, Tommy and me has arranged it,' and he pointed blithely to a corner of the yard where Tommy was hunkering by himself in Lewis's jacket, and wiping his mournful eyes with Lewis's hanky. I daresay you can jalouse the rest, but I kept Lewis behind after the school skailed, and got a full confession out of him. He had tried hard, he gave me to understand, to mourn fittingly for his father, but the kickbonnety season being on, it was up-hill work, and he was relieved when Tommy volunteered to take it off his hands. Tommy's offer was to swop jackets every morning for a week or two, and thus properly attired to do the mourning for him."

The dominie paused, and regarded his guest quizzically. "Sir," he said at length, "laddies are a queer growth; I assure you there was no persuading Lewis that it was not a right and honorable compact."

"And what payment," asked McLean, laughing, "did Tommy demand from Lewis for this service?"

"Not a farthing, sir—which gives another uncanny glint into his character. When he wants money there's none so crafty at getting it, but he did this for the pleasure of the thing, or, as he said to Lewis, 'to feel what it would be like.' That, I tell you, is the nature of the sacket, he has a devouring desire to try on other folk's feelings, as if they were so many suits of clothes."

"And from your account he makes them fit him too."

"My certie, he does, and a lippie in the bonnet more than that."

So far the school-master had spoken frankly, even with an occasional grin at his own expense, but his words came reluctantly when he had to speak of Tommy's prospects at the bursary examinations. "I would rather say nothing on that head," he said, almost coaxingly, "for the laddie has a year to reform in yet, and it's never safe to prophesy."

"Still I should have thought that you could guess pretty accurately how the boys you mean to send up in a year's time are likely to do? You have had a long experience, and, I am told, a glorious one."