"It's here, sure enough!" cried the young machinist, and from out of a dim recess he brought forth the model, covered with dust and cobwebs.
So interested were the two that they did not notice Corrigan back out from the room and close the door behind him.
"I'm glad it's safe!" exclaimed Jack, as he placed the precious burden upon the floor.
"I was afraid--Hello--what's that?"
The creak of a bolt not used before sounded in his ears, and in an instant he noticed the closed door.
"He's gone!" ejaculated Mont, in astonishment.
The young machinist sprang to the door and shook it vainly.
"Trapped, by Jinks!" he exclaimed. "Here, quick! we'll break it down!"
With all force both threw themselves against the wooden barrier.
Unfortunately the door was an old-fashioned one, thick and solid, and it stood firm.