"Fire!" cried Ned. "We're on fire!"
"Bless my water bucket!" gasped Mr. Damon. "They've set fire to the hut!"
It was but too true. While Tom and the others had been standing off the giants in front, a smaller force had crept around to the rear, and set the inflamable side of the hut ablaze.
Desperately Tom looked around. There was no means at hand of fighting fire. Hardly a bucket of water was in the place, and the structure was filled with quick-burning stuff, while the fireworks that remained, and the blasting powder, made it doubly dangerous. Then Tom's eyes lighted on the big aeroplane, ready for instant service.
"That's it!" he cried suddenly. "It's our only hope, and the last one! Come on, everybody! Down with that wall! Pull on the ropes and it will come! We've got to go now. In another minute it will be too late. Climb up, Mr. Poddington, Mr. Damon, Ned, and I will start the machine."
"The wall first! The wall!" cried Ned.
"Sure," answered Tom. He and his friends grasped the two ropes that had been attached to the key-beams in the structure. It had been so arranged that when the supports were pulled out the wall would fall outward, making a fairly
