time near the earth. Then checking the speed, he ran it lightly
aground in an open field a little distance from a clump of
buildings.

The driver got out and stretched his cramped limbs. Taking a hand
glow lamp he ran carefully over the mechanism of the plane. Then he
opened a locker and took out two small magazine pistols. One he
handed to Ethel.

"Don't use it," he said, "until you have to."

"Will you go with me?" he asked, "to tack the poster, or will you
stay with the plane?"

"I'll stay here," she replied.

Komoru walked off rapidly towards the house. Presently the stillness
was interrupted by the vociferous barking of a dog; Then there was a
sound as of some one picking a taut wire and the voice of the dog
curdled in a final yelp.

In a few minutes Komoru was back. "Dogs are no good," he said; "they
produce nothing but noise."

"Will you kindly get aboard, Miss Ethel? There is much to do."

[Illustration: By carefully shielding his flash lamp, Komoru was
able to read a duplicate of the notice he had just fastened up.]

Ethel obeyed; meanwhile Komoru inspected the surface of the ground