"Don't you understand?" inquired Bob, with a smile. "He was a spy."
"Of course he was a spy!" asserted Jimmy. "I sized that up all right. He was a spy inside our lines and--"
"Yes, but he was also a spy inside the German lines," put in Roger. "Don't you understand, Blazes! Captain Dickerson wore the German uniform to get possession of some of their secrets. He's in the United States Secret Service."
Jimmy looked first at one and then at the other of his chums, until he had faced them all in turn.
"Gee!" he exclaimed at length. "What a chump I was not to guess that, when he acted so coolly after I denounced him! What a chump I was!"
"Oh, well, we couldn't guess everything," said Franz, "And he certainly acted suspiciously at times."
"Yes, so I dinks myself," agreed Iggy, who had not spoken for some time.
"Well, it's all over--at least we've cleared up two mysteries," observed Bob. "I wonder what will happen next?"
"Well, there's going to be more fighting; that's sure," declared Jimmy, "and I want to do my share!"
And whether they did or not will be told in our next volume, entitled, "The Khaki Boys Fighting to Win; or, Smashing the German Lines."
End of Project Gutenberg's The Khaki Boys Over the Top, by Gordon Bates