"He's signaling," muttered Hal, watching the motions of Corporal Hyman's right arm. He had started with that arm held up before his face. Now the arm was falling rhythmically to left and right. "Why, Hyman is asking, 'Can you read this?'"
Then, raising his own arm, Hal signaled back:
"Yes."
Again Hyman's right arm was moving. Hal watched closely, spelling out the wig-wagged signal:
"Pipe—off—what's—coming. Greatest—ever happened—in the—Army. Don't—miss—it."
"Now, what on earth can that be?" queried Noll.
"It must be something unusual to rouse enthusiasm in a man like Hyman," laughed Hal.
And indeed it was something great that was coming. Corporal Hyman's wig-wagging arm was moving again.
"Hustle—over—to—main—road."
Hal and Noll were instantly in motion. It must be confessed that they were eager.