"These I burn," he said and left with them.
"We have to move on at once," Sim said. "This place will be searched before morning. The Germans are very thorough."
The boys seated themselves and waited. Their host was gone for a long time. Finally Sim got up.
"I'll go hurry him along," he said. "You stay right here." He left the room hurriedly.
"Sim is no nut. He has this all worked out," O'Malley said.
"He certainly has," Stan agreed. He got up and moved to the door Sim had just closed. Opening it gently he went into a dark room. Feeling his way he moved to another door. He could see a shaft of light under the door. Halting with his hand on the knob, he listened. Sim was talking with their underground agent in German. Stan opened the door quickly. The two men whirled about and faced him.
"I didn't know you spoke German," Stan said.
"You should not be sneaking around," the German said sharply.
"I have always spoken German," Sim answered. "I learned it in school back home. How did you think I managed to line things up so well if I didn't know German?"
"We got worried," Stan said. "Thought something might have happened to you."