"Now, you must be careful," Mr. Purfleet said, "because if it should get out, the consequences might be terrible. Now, then, four of you take the sticks, and all hit together, as hard as you can--now."

The sticks descended together. There was a violent writhing and contortion beneath the clothes, but the blows rained down fast and, in a very short time, all movement ceased.

"It must be dead, now," Bob Repton said. "I think we can look at it now, sir."

"Well, draw the clothes down very gently; boys, and be ready to strike again, if you see the least movement."

The clothes were drawn down, till the creature was visible.

"It must be a cobra," the usher said, looking at it from a distance. "It is thick and short. It must have escaped from somewhere. Be very careful, all of you."

Mason approached cautiously, to get a nearer view; and then exclaimed:

"Why, sir, it is an eel!"

There was a moment's silence, and then a perfect yell of laughter from the boys. For a moment the usher was dumbfounded, then he rallied.

"You will all go to your beds, at once," he said. "I shall report the matter to Mr. Tulloch, in the morning."