"Say," he cried, in sudden excitement, "that's another car! And what's an automobile doing here at this time of night?"

The same thought came to the three of them at once.

"I wonder if it's one of their scout cars," cried Tom Binns, voicing the thought. "I've been thinking it was funny we hadn't run into them at all, Jack."

"Well, we'll have to look out if it is," said Jack.

The sound grew louder, and it was soon apparent that the other car was coming toward them. Jack slowed down, and kept to a slow pace, keeping his car as much as possible in the shadow of the trees that hung over one side of the road. The other car came on fast, and, as it swept around a bend of the road that had hidden it from them, they were almost blinded by the great ray from the searchlight it carried. Jack himself had been running without lights of any sort, for greater safety from detection.

As soon as the driver of the other car saw the machine in which the three Scouts were riding, he slowed down. It came alongside in a few moments and a man leaned out and hailed Jack.

"What are you doing here?" he cried, and then, before Jack could answer the question: "Come on, men, it's one of their cars! We've got to capture them!"

As he spoke he slewed his car around, so that it half filled the road, and two men leaped to the ground and made for Jack's car.

But Jack had a different plan. He had no mind to surrender tamely now when victory was within his grasp. In a moment the big grey car shot down the road, and the next moment it was roaring at full speed ahead. Behind it, after a stunned moment of surprise and silent inaction, thundered the other car, a scout car of the Blue army.

"Gee, this is going to be a real road race!" yelled Jack. "That car is this one's twin. They can go just as fast as we can. And they're stronger than we are, if they ever catch us—three men to three boys. But they'll have to go some to catch us!"