mutually helpful. If you feel like going to Philadelphia, and aiding
him in getting his electric airship in shape, you have my
permission."

"I don't know," answered Tom, doubtfully. "I was just getting my
monoplane in shape for a little flight. It was nothing particular,
though. Dad, I think I WILL take a run to Philadelphia, and see if I
can help Mr. Fenwick. I'll wire him that I am coming, to-morrow or
next day."

"Very well," assented Mr. Swift, and then he and his son went into
one of the shops, talking of a new invention which they were about
to patent.

Tom little knew what a strange series of adventures were to follow
his decision to go to the Quaker City, nor the danger involved in
aiding Mr. Fenwick to operate his electric airship.




CHAPTER II

MISS NESTOR'S NEWS


"When do you think you will go to Philadelphia, Tom?" asked Mr.
Swift, a little later, as the aged inventor and his son were looking
over some blueprints which Garret Jackson, an engineer employed by
them, had spread out on a table.