It isn't beyond the bounds of reason that jealousy may have had something to do with Amy's attitude, for Amy was "a swell dresser" himself and had a fine eye for effects of colour. Amy's combinations of lavender or dull rose or pearl-grey shirts, socks and ties were recognised masterpieces of sartorial achievement. The trouble with Amy was that when the tennis season was over he had nothing to interest himself in aside from maintaining a fairly satisfactory standing in class, and I'm sorry to say that Amy didn't find the latter undertaking wildly exciting. He was, therefore, an excellent subject for the mischief microbe, and the mischief microbe had long since discovered the fact. Usually Amy's escapades were harmless enough; for that matter, the present one was never intended to lead to any such unfortunate results as actually attended it; and in justice to Amy it should be distinctly stated that he would never have gone into the affair had he foreseen the end of it. But he couldn't see any further into the future than you or I, and so—yes, on the whole, I think it may be fairly said that Amy Byrd started it.

It was on a Tuesday, what time Amy should have been deep in study, that Clint Thayer, across the table, had his attention wrested from his book by the sound of deep, mirthful chuckles. He glanced over questioningly. Amy continued to chuckle until, being bidden to share the joke or shut up, he took Clint into his confidence. Clint was forced to chuckle some himself when he had heard Amy through, but the chuckles were followed by earnest efforts to dissuade his friend from his proposed scheme.

"He won't stand for it, Amy," Clint protested. "He will report the lot of you to Josh and you'll be in a peck of trouble. It would be terribly funny, all right, but you'd better not try it."

"Funny! My friend, it would be excruciating! And I certainly am going to have a stab at it. Let's see who will go into it. Steve Edwards—no, Steve wouldn't, of course. Tom Hall will, I'll bet. And Roy Draper and Harry Wescott, probably. We ought to get as many of the fellows as we can. I wish you were in that class, Clint."

"I don't. You're a chump to try such a trick, Amy. You'll get pro for sure. Maybe worse. I don't believe Moller can take a joke; he's too haughty."

"Oh, rot! He will take it all right. Anyway, what kick can he have? We fellows have just as much right to——"

"You'll wish you hadn't," said Clint. "See if you don't!"

Clint's prophecy proved true, and Amy did wish he hadn't, but that was some days later, and just now he was far too absorbed in planning his little joke to trouble himself about what might happen as a result. As soon as study hour was over he departed precipitately from Number 14. Torrence and Clint saw no more of him until bedtime. Then his questions met only with more chuckles and evasion.

The result did not appear until two days later, which brings our tale to the forenoon of that unlucky Thursday preceeding the Southby contest. Mr. Moller's class in Physics 2 met at eleven o'clock that morning. Physics was an elective course with the Fifth Form and a popular one, many of the fellows taking it only to fill out their necessary eighteen hours a week. Mr. Moller, attired as usual with artistic nicety, sat in his swivel chair, facing the windows, and drummed softly on the top of the desk with immaculate finger-tips and waited for the class to assemble.

Had he been observing the arriving students instead of the tree-tops outside he might have noticed the peculiar fact that this morning, as though by common consent, the students were avoiding the first two rows of seats nearest the platform. But he didn't notice it. In fact, he didn't turn his head until the gong in the lower hall struck and, simultaneously, there sounded in the room the carefully-timed tread of many feet. Then "The Conqueror" swung around in his chair, felt for the black ribbon which held his tortoise shell glasses and, in the act of lifting the glasses to his well-shaped nose, paused and stared.