Corporal Hal, at this moment, was down at the further end of the squad room, close to an open window. Here, where he had plenty of space for manœuvring, he was practising some moves with the signal flag, while Sergeant Hupner stood by criticising.

"Of all the dizzy young rookies with the waving shirt I consider you the worst," jeered Corporal Hyman, stepping over. "Here, I'm going to take that thing away from you. What you need, Overton, is rest."

Hyman made a dive for the signal flag. Corporal Hal resisted the effort to take it away from him, and a good-natured scuffle followed. While it was going on Hal was forced into the open window.

Hyman seized the staff, giving it a twist. Then Hal started to recover it.

Thus the staff dropped and fell below, just as young Corporal Overton sprang inward.

Instantly, however, the boy remembered that it might drop on some one's head. He wheeled like a flash, bending out of the window, just as a howl floated upward.

"Hey, you idiot!" followed the howl, and the young corporal saw Hinkey, a new recruit in the regiment and company, take off his hat and rub a rising lump on the top of his head.

"Look out below, there!" called Corporal Hal.

"What else are you going to throw out at me?" glared Private Hinkey.

For answer, Corporal Hal sprang over the window sill, landing lightly on the ground below.