vicinity has seen you in flight and would imagine that you were merely
taking a trip through the air."

"But can you get out an apparatus light enough for us to take up?"
asked Jack.

"I am working on that now," said Mr. Chadwick. "I'll have it ready in
a week."

"We'll be ready for you," promised Jack.




CHAPTER VII.

THE GREAT TEST.


A week later to the day on a sunshiny, windless morning, the
Wondership was run out of its shed, glistening with new paint and with
every bit of bright work burnished till it shone and sparkled like
newly-minted silver. Amidships on the craft, the general construction
of which is familiar to readers of foregoing volumes of this series,
was a square metal box with small wires leading to long copper wires
stretched from end to end of the Wondership's body.

These long copper wires were to form the aërials by which the messages
from Mr. Chadwick's workshop were to be caught. The smaller wires
underneath were connected with the metal work of the engine. These