“No. Of course not. It is difficult for the head of a house to know all that goes on in that house.”

Was this his beastly sarcasm? Trevor asked himself. But he came to the conclusion that it was not. After all, the head of a house is only human. He cannot be expected to keep an eye on the private life of every member of his house.

“This must be stopped, Trevor. There is no saying how widespread the practice has become or may become. What I want you to do is to go straight back to your house and begin a complete search of the studies.”

“Tonight, sir?” It seemed too late for such amusement.

“Tonight. But before you go to your house, call at Mr Seymour’s, and tell Milton I should like to see him. And, Trevor.”

“Yes, sir?”

“You will understand that I am leaving this matter to you to be dealt with by you. I shall not require you to make any report to me. But if you should find tobacco in any boy’s room, you must punish him well, Trevor. Punish him well.”

This meant that the culprit must be “touched up” before the house assembled in the dining-room. Such an event did not often occur. The last occasion had been in Paget’s first term as head of Donaldson’s, when two of the senior day-room had been discovered attempting to revive the ancient and dishonourable custom of bullying. This time, Trevor foresaw, would set up a record in all probability. There might be any number of devotees of the weed, and he meant to carry out his instructions to the full, and make the criminals more unhappy than they had been since the day of their first cigar. Trevor hated the habit of smoking at school. He was so intensely keen on the success of the house and the school at games, that anything which tended to damage the wind and eye filled him with loathing. That anybody should dare to smoke in a house which was going to play in the final for the House Football Cup made him rage internally, and he proposed to make things bad and unrestful for such.

To smoke at school is to insult the divine weed. When you are obliged to smoke in odd corners, fearing every moment that you will be discovered, the whole meaning, poetry, romance of a pipe vanishes, and you become like those lost beings who smoke when they are running to catch trains. The boy who smokes at school is bound to come to a bad end. He will degenerate gradually into a person that plays dominoes in the smoking-rooms of A.B.C. shops with friends who wear bowler hats and frock coats.

Much of this philosophy Trevor expounded to Clowes in energetic language when he returned to Donaldson’s after calling at Seymour’s to deliver the message for Milton.