Harding smiled.

“Easily said,” he declared, “but, I am afraid, not so easily accomplished.”

“If you’ll listen to me I think I can suggest something,” declared Chester.

“Fire away,” said Hal.

“Well,” began Chester, “in the first place we have a certain immunity now that we wear German uniforms. Hal and I speak German fluently, which will help. How about you, Harding?”

“Very little,” was the reply. “English has always been good enough for me.”

“Then we shall have to do the talking,” said Chester. “You will have to be afflicted with an attack of dumbness, Harding.”

“I can do that, all right. I’ll just sit tight and say nothing.”

“Good! Now my idea is this: We’ll head for the front, bearing off a trifle to the south and thus dodging the Swiss border. We’ll proceed as straight as possible to the German front in France. We’ll trust to luck to get back to our own lines after we have learned at the front that which we desire.”

“I don’t call that much of a plan,” said Harding. “There is no strategy there. Besides, we would just be putting our heads into the lion’s mouth.”