"Yes."
Walters suddenly leaned forward. "But you do not deny that you knew about the special unit that Professor Hemmingwell had created," he said. "A unit that only he and I knew about?"
"I knew about the unit—yes, sir," replied Troy.
"How could you?" demanded Walters.
"I overheard you both discussing it one day."
"Where?"
"In the hangar," said Troy. "You and Professor Hemmingwell were talking on the main deck while I was inside—what will be the radar deck—working. I heard you talking about the unit, and after you left, I happened to find a blueprint on the table. It coincided with what you had been talking about. I looked at it and then thought nothing of it. A few minutes later the professor came running in and took the blueprint away."
"Did he ask you if you had read the print?" asked Connel.
"No, sir," replied Troy. "If he had, I would have told him that I had."
"Now," said Connel, "did you have anything to do with the so-called accident to the oscillating timing device?"