then, before either Tom or Abe could stop him, Andy darted into the
big shed, and slammed shut the door.




CHAPTER IV

TOM GETS THE MAP


For a few seconds Tom was so surprised at the sudden action of the
bully that he could neither move nor speak. Then, crying out a
command to halt, the young inventor took after his enemy.

"The scamp!" he cried. "The nerve he has! To deceive Abe Abercrombie
in that fashion! Wait until I get hold of him!"

"What's it all about?" asked the old miner, who, being a slow
thinker had not understood all that had happened. "What's up, Tom
Swift?"

"Haven't time to tell you now," flung back the running lad over his
shoulder. "I've got to catch Andy! Then I'll explain. He's trying to
get ahead of us. I guess, but we'll stop him!" Thereupon Tom flung
himself against the door of the airship shed. The young inventor
found the portal bolted, though it vibrated with the impact of his
body.

"Come out of there, Andy Foger!" cried Tom, pounding on the door.