"I suppose you noticed," said the girl, "that George was about two minutes late? Well, it seems there were two people sitting on one of the guns, and he didn't know what to do. He waited and waited, and finally crept up and lit the fuse and ran. The gun went off while those two were sitting on it."

There was a hearty laugh over this rather ludicrous picture.

And then a few moment's silence, during which the girl gazed thoughtfully into space.

"I've got something important to tell you, by the way," she said, suddenly. "Last night the cadets all thought one of themselves had played the joke. Well, it seems that they've found out since."

"They have! How do you know?"

"I was talking to Corporal Jasper this morning. Jasper's a mighty nice boy, only he thinks he's a man. All the yearlings are that way, so pompous and self-conscious! I think plebes are delicious for a change. I told Mr. Jasper that and he didn't like it a bit. Anyhow, they must have inquired among themselves and found out that nobody in their class had anything to do with it. For the 'corporal'—ahem!—was pretty sure you were the guilty one, and he said the class was mad as hops about it."

"That's good," laughed Mark, rubbing his hands gleefully. "Perhaps we'll have some fun now."

"You will. That's just the point. I don't know that I ought to tell you this, but I didn't promise Mr. Jasper I wouldn't, and I suppose my duties as a member of the Seven are paramount to all others."

"Yes," responded Mark, "we'll expel you if you play us false. But don't keep me in suspense. What's all this about?"

"I like to get you excited," laughed the girl, teasingly. "I think I'll hold off a while so as to be sure you're interested, so as to make you realize the importance of what I have to say. For you must know that this is a really important plot that I've discovered, a plot that will——"