"The four men we saw when we stopped so suddenly," Jimmy explained. "They've gone!"
"Where?" Roger wanted to know.
Jimmy pointed to a rude door leading out of the tunnel. It was answer enough.
"Say, you fellows act as though there was a dark mystery here," complained Bob, as he helped Iggy to a seat on a box.
"I'm beginning to think there is," was Jimmy's answer. And hardly had the words passed his lips than from the door leading out of the dugout came a voice saying:
"Come on now! We can get 'em this way, I guess!"
The four Khaki Boys drew their revolvers and stood tense and waiting, forming a protecting screen in front of Iggy.
[CHAPTER IV]
RECOGNITION
Naturally, after what had happened and bearing in mind the strange sight Roger and Jimmy had witnessed, there was but one thought in the minds of at least four of the Khaki Boys—Iggy was temporarily out of it. And this thought was that some disaster had overtaken the American forces above ground while much was happening to them below ground, in the dugout and tunnel. Perhaps the Germans had made a counter-attack, retaken the trenches from which they had been driven, and were now about to swarm down into the dugout, where the Khaki Boys were, to capture them.