“No, that’s so, too,” agreed Chester. “I hadn’t thought of that.”

Further conversation was interrupted by a sound of some one at the trap-door. Chester and Hal both jumped to their feet, and stood ready above the opening in the floor to seize the intruder should it prove to be an enemy.

But when the trap-door came away the head of their benefactress appeared through the opening.

“You can come down now, if you want to,” she said. “The Germans have been here and gone. I am sure they will not return.”

Chester turned to Hal.

“What do you think?” he asked. “Shall we go down, or had we better stay up here?”

Hal considered for a moment.

“I guess we might as well go down,” he replied at length. “I don’t believe there is any likelihood of their coming back. Besides, it’s too cramped and stuffy up here for comfort.”

Accordingly both boys descended from their refuge, and a few moments later were sitting in the living room with their hostess.

“We can never thank you enough for what you have done for us,” Chester told her, after she had related her experiences with the Germans.