ing is that the fire is reaching stores of ammunition, one after the other. This whole place may go up in a minute."
That seemed to be the fear on the part of the Germans, for more orders were shouted, and all but two of the soldiers guarding the captives were summoned away from the wire stockade.
There had been a bright flare of fire after the second explosion, but this soon died away, and the shouts and commands of the officers directing the fire-fighting force could be heard.
Tom and Jack were standing near the wire barrier trying to look out to see what was going on beyond a group of ruined factory buildings, and at the same time casting longing eyes at the great aeroplane which seemed only waiting for them, when the two boys became aware of a figure which appeared to be slinking along the side of the stockade. This figure acted as though it desired to attract no attention, for it kept as much as possible in the shadows.
"Did you see that?" asked Jack of his chum in a low voice.
"Yes. What do you make it out to be?"
"He isn't a German soldier, for he isn't in uniform. Have any of our crowd found a way out of this place by any chance?"
"I don't know. If they have—"
