Whether it was that individual who had got in communication with Tom early that morning or not, the young inventor did not see him in the crowd.

“Did you see him?” he asked Ned Newton, as the treasurer of the company came aboard at the last moment.

“See who?” demanded Ned, in some surprise.

“The Frenchman, as you called him.”

“No, I had forgotten all about him.”

“I have an idea that he has not forgotten about us—or about the Winged Arrow,” Tom said reflectively.

CHAPTER XII
IN PERIL

There was a deal of running about by the crew, getting ready for the flight. Ned Newton stared at his friend, the inventor, and asked softly:

“Just what are you getting at, Tom? Do you think that stranger is around again?”

“I am pretty sure of it,” said Tom, in the same low tone. He swiftly related what he had heard by radio-telephone that morning. “The thing is mysterious, to say the least.”