His ideas of order were of the loosest kind, and hence the noise at times was such that even the older pupils found it unbearable; but when the hour for recitation came, somehow a deathlike stillness fell upon the school, and the unready shivered with dread apprehension.
And yet he never thrashed the boys; but his fear lay upon them, for his eyes held the delinquent with such an intensity of magnetic, penetrating power that the unhappy wretch felt as if any kind of calamity might befall him.
When one looked at John Craven's face, it was the eyes that caught and held the attention.

They were black, without either gleam or glitter, indeed almost dull--a lady once called them "smoky eyes." They looked, under lazy, half-drooping lids, like things asleep, except in moments of passion, when there appeared, far down, a glowing fire, red and terrible.

At such moments it seemed as if, looking through these, one were catching sight of a soul ablaze.

They were like the dull glow of a furnace through an inky night.
He was constitutionally and habitually lazy, but in a reading lesson he would rouse himself at times, and by his utterance of a single line make the whole school sit erect.

Friday afternoon he gave up to what he called "the cultivation of the finer arts." On that afternoon he would bring his violin and teach the children singing, hear them read and recite, and read for them himself; and no greater punishment could be imposed upon the school than the loss of this afternoon.
"Man alive! Thomas, he's mighty queer," Hughie explained to his friend.
"When he sits there with his feet on the stove smoking away and reading something or other, and letting them all gabble like a lot of ducks, it just makes me mad.