“Yes,” Felix grinned. “But now they’ve found us. All the honest people in that great city will want to save us. Isn’t it wonderful when you think of it?” he marveled. “So many good people in the world! So many willing to give a fellow a lift when he’s in trouble. If only we could all pull together all the time, what a world this would be!”

After that, each occupied with his own thoughts, they drifted on into the night.

A half hour later a dark bulk came stealing toward them. This was a small dirigible balloon owned by an advertising firm. Soon they were alongside. Instruments were taken aboard, the runaway balloon deflated, then they went gliding back toward the city of a million lights.

“Should have had this old sausage in the beginning,” Felix grumbled. “Will next time perhaps.”

Johnny wondered if he would be invited to participate in that next endeavor and, if so, what he would learn.

In due time they were back on good solid earth. But the day, for Johnny, was not yet over.

CHAPTER XI
A ROOM OF STRANGE MAGIC

“Say!” Felix exclaimed as they boarded a car bound for home. “Wonder how it happened that searchlight fellow was looking for us.”

“Somebody told him,” Johnny suggested.

“Yes, and I know who!” The young inventor’s face fairly shone. “It was Beth; couldn’t have been anyone else. Fellow without a sister is just square out of luck, that’s all. The way she gets me out of things! Say, man! It’s great!”