All continued quite orderly until he had passed away through the lavatory, and one of the boys following him as a scout, had seen the last glimmer of his candle disappear round the corner at the foot of the great staircase, and heard the library door close behind him.
After that, particularly as Dr.Rowlands was absent, the boys knew that they were safe from disturbance, and the occupants of No.

7 were the first to stir.
"Now for some fun," said Duncan, starting up, and by way of initiative pitching his pillow at Eric's head.
"I'll pay you out for that when I'm ready," said Eric, laughing; "but give us a match, first." Duncan produced some vestas, and no sooner had they lighted their candle, than several of the dormitory doors began to be thrown open, and one after another all requested a light, which Duncan and Eric conveyed to them in a sort of emulous lampadephoria, so that a length all the twelve dormitories had their sconces lit, and the boys began all sorts of amusement, some in their night-shirts and others with their trousers slipped on.

Leap-frog was the prevalent game for a time, but at last Graham suggested theatricals, and they were agreed on.
"But we're making a regular knock-me-down shindy," said Llewellyn; "somebody must keep cave." "O, old Rose is safe enough at his Hebrew in the library; no fear of disturbing him if we were dancing hippopotami," answered Graham.
But it was generally considered safest to put some one at the top of the stairs, in case of an unexpected diversion in that direction, and little Wright consented to go first.

He had only to leave the lavatory door open; and stand at the top of the staircase, and he then commanded for a great distance the only avenue in which danger was expected.

If any master's candle appeared n the hall, the boys had full three minutes' warning, and a single loudly-whispered "cave" would cause some one in each dormitory instantly to "douse the glim," and shut the door; so that by the time of the adversary's arrival, they would all be (of course) fast asleep in bed, some of them snoring in an alarming manner.