Chapter 16 THE MAD INVENTOR.

Frank and Barney were strolling about the place when they came upon Professor Scudmore.

"Ha, young gentlemen!" cried the eccentric old fellow; "come with me. I am about to start upon my trial voyage. The Eagle is inflated and ready to soar. I wish you to witness my triumph."

He took them outside the town to a secluded glen, in which was an ol

            
            

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