Jimsy looked confused.

"I've got to make a confession," he said.

"You didn't bring them!" cried Peggy.

"No, the fact is I—I forgot."

Jimsy looked miserably from one to the other. Here was a quandary indeed. It might prove hard to get such a commodity as a spark plug in Millbrook.

[!-- CH18 --]

CHAPTER XVIII.

IN SEARCH OF A NEW PLUG.

It was while they were still discussing the situation that the automobile with Jake at the wheel and Miss Prescott and The Wren in the tonneau, drove into the grounds. What a difference there was in the child since her benefactors had fitted her out! She looked like a dainty, ethereal little princess instead of the ragged little waif that had been rescued from the gipsy camp.

But the minds of our young friends were now intent on different matters. Time pressed. The altitude flight, in which Jimsy had planned to take part, was to be the first thing on the program. If anything was to be done about reequipping the Dragon it must be done quickly.