At that Hal sprang to his feet again.

As he did so he accidentally pushed one of the chairs over backward. It was close to the door, which, at that instant, opened. The flying chair struck the incomer across his shins, bringing an angry exclamation from the man.

"Don't you know anything, rook?" demanded the man, Private Bill Hooper. Hooper stood five feet ten in his socks. He was just under thirty, a man who was not popular in the company because of his unruly temper.

"I'm sorry," apologized Hal. "I didn't know you were there."

"You'll be sorrier, now," cried Hooper fiercely. Striding up to young Overton, Hooper landed a sound box on one of the boy's ears.

Hal flushed crimson in an instant.


CHAPTER XV

PRIVATE BILL HOOPER LEARNS