them?"

"I am not accusing anybody, sir, but I want this house searched. Must
I call for outside help, or will you help me, sir?"

"I'll help, sir," replied the lieutenant quietly. To the lads he said
softly: "Never mind him. He is always irritable when he misplaces
something."

The old general's sharp ears caught this remark.

"Irritable, am I?" he cried. "Well, maybe I am, but I don't need to
have my own son apologize for my actions. If I have done anything that
demands an apology I'll apologize myself."

Lieutenant Strauss shrugged his shoulders, as he said:

"I'll search the second floor, sir. Will you take the first?"

"Yes," snapped the general, "and see that you make a thorough job of
it."

At this juncture Chester rose to his feet.

"If you think we have your papers, sir," he said quietly, "we are
willing to submit to a search."

"And searched you shall be," said the general. He turned to his son.
"Search them!"

The lieutenant protested, but to no avail. The lads submitted to the
search in silence.

"They have nothing, sir," said the lieutenant.

"Then search the second floor," commanded the general.

An hour later the lieutenant came downstairs, and a few moments later
the old gentleman, now considerably cooled off, also returned.

"I found nothing, sir," reported the lieutenant.

"Nor I," said the general slowly. "Can it be I was mistaken? Perhaps,
after all, I did leave the maps at headquarters." He turned to Hal and
Chester. "I hope you will pardon me for my outburst," he said gravely,
"but I am easily excited."

"Say no more about it, sir," replied both lads together, but to each
came the same thought:

"We are in luck."

CHAPTER XXXIV.

SAFE AGAIN.

Dinner over and the old general having left the house, Lieutenant
Strauss said to the boys:

"There is still some amusement in Berlin, in spite of the war. Would
you care to accompany me to the play to-night?"

Both lads, knowing that this would be as good an opportunity as they
could expect for making their escape, pleaded that they were too
tired.

"Some other evening, if that will do as well," said Chester.

"Oh, all right, whatever you say," replied the lieutenant. "I hope
there are no hard feelings--that you will overlook my father's show of
temper?"

"Of course," said Hal. "Anyone would have done the same under the
circumstances."

After a few further words the lieutenant departed, and the lads,
bidding his