"We had a great day yesterday," he said.
"We shall have a greater to-morrow," was Bob's reply.
A few minutes later the two were eagerly discussing what would probably take place, and Bob found himself giving away information of great importance.
"I wish I could talk German," said the young officer presently. "I had heaps of chances whilst I was at school, but, like a fool, I neglected them."
"Why, what would you do?" asked Bob.
"I would find my way to the enemies' camp," was the reply; "and I would learn what they are up to; it would be a great advantage to us. It is said that our lines are filled with German spies."
"I suppose spies are necessary," was Bob's reply; "but, somehow, spying does not fall in with our ideas; still, I suppose we have to use them."
"Those Germans are such mean devils," was Captain Rivers' retort; "there's no dirty work they aren't prepared to do; still, if I only knew German, I would be a match for 'em. I suppose you do not happen to know German?"
Bob did not reply, but he looked at the other keenly, noticing his fair, smooth, ruddy face and altogether innocent appearance. Then a suspicion was born in his mind. "Wait a minute, will you?" he said, and then, calling a soldier, told him to fetch Lieutenant Proctor, as he wished to speak to him.
"What's up, Nancarrow?" said Proctor, when he came.