CHAPTER VII
THE AIR GLIDER
Mr. Damon continued to hammer away at the window sash with the piece of driftwood. There were splinters of the frame and jagged pieces of glass sticking out, making it dangerous for the exile to slip through.
"Come on! Come on!" the eccentric man continued to call. "Bless my safety valve! We'll save you! Come on!"
Mr. Petrofsky was leaping across the room, just ahead of the one guard. The other two were at the open door now, through which Tom could be seen. Then the spies, realizing in an instant that they had been deceived, made a dash after their comrade, who had his hand on the tails of the exile's coat.
"Break away! Break loose!" cried Mr, Damon, who, by this time had cleared the window so a person could get through. "Don't let them hold you!"
"I don't intend to!" retorted Mr. Petrofsky,
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