"Yes, sir." The young lieutenant patted Tom on the shoulder. "Good
work, Cadet," he said and started away.

Tom grinned his thanks at the young officer and struggled to his feet.
"Sir," he said to Connel, "I think I should explain something about that
truck."

"The truck!" cried Connel. He turned and called, "Lieutenant, come back
here." The young officer turned back. "Go ahead, Tom," said Connel.

While Tom told his story of the truck having been parked near the gate,
and having started to roll by itself, Connel and Slick listened
intently. Quietly Devers joined them. Finally, when Tom had finished,
Connel rubbed his chin thoughtfully and stared at the truck which was
being examined by a swarm of guards.

A few moments later the sergeant in command reported to Connel that they
had found a worn clutch plate that could have slipped and caused the
truck to roll of its own accord, especially if the motor was turning
over.

Connel nodded and then ordered, "Get the driver over here."

The man that had spoken to Tom about the secret project came forward
under guard. He was thoroughly frightened and Connel was aware of it.
"Relax, friend," he said. "I just want to ask you one question."

"Yes, sir," gulped the truck driver.

"Was there anything wrong with your truck?" demanded Connel.