The others nodded their assent and an instant later the machine darted southward at a rapid gait.
Two miles down the road, Hal was forced to stop by the presence in the road of a single man armed with a rifle, which he aimed straight at the car.
"What do you want?" demanded Hal, anxiously.
"You'll have to get out," was the man's reply. "I have orders to let no one pass."
Helen looked at Hal hopelessly and the lad was moved to action.
Gently he stirred the Colonel with his toe as he commanded under his breath:
"Speak for us or I'll put a bullet through you."
The officer did as commanded.
"Why are you barring our way?" he demanded in a harsh voice.
"Orders, sir," was the reply.