"But wait a minute," he ordered, and Jack knew that he was breathing a prayer and his own heart echoed the silent petition. A few minutes more and they were again lying close behind the tent. A slight but distinct sound soon convinced them that the girl was not asleep but was moving as though to ease her cramped limbs.

Raising the side of the tent a few inches Bob trust his face beneath it and whispered faintly.

"Sue."

The moving stopped, but there was no answer.

"Sue," he whispered, this time a trifle louder.

"Who is it?"

The reply was so low that he barely caught the words.

"It's Bob," he whispered back.

"Thank God!"

There was a volume of relief in the words and both boys knew how great must have been her fear.