“And in taking that room you were put on your honor to conform to the school rules.”

“Yes, sir.”

“Explain, then, your absence from your room last night and your return through the window at half-past twelve.”

“I wasn’t out last night at all, sir,” replied Salter in a low voice, but without raising his eyes to meet Mr. Graham’s searching gaze.

“When did you go to bed?”

“About ten.”

“You did not go out or come in by your window last night?”

“No, sir.”

“Or this morning early?”

“No, Sir.”