“I notice your coat has a torn place,” Penny said, taking a scrap of blue wool from her purse. “This, I believe, is a perfect match.”

Mr. Cordell gazed at the wool and shrugged. “All right,” he admitted coolly. “I did crawl through the skylight twice to see if I could find the picture. I knew this fool photographer had snapped a picture of me, and I feared I might be falsely accused.”

“Then you knew Nelson was mixed up in the dynamiting?” Captain Bricker questioned.

“I wasn’t certain,” Mr. Cordell said in confusion. “The reason I didn’t report to the police was that I was afraid of being involved. After that night, Webb Nelson tried to blackmail me. Because of my position, I dared have no publicity.”

The Mirror editor’s explanation carried a certain amount of conviction, and Penny was dismayed to hear Captain Bricker assure him that if a mistake had been made he would be granted freedom immediately after he had talked to the police chief.

“I shall accompany you without protest,” the Mirror editor returned stiffly. “Later I shall file charges against those who have tried to damage my character.”

Captain Bricker asked Salt for the picture which he intended to take to police headquarters.

“May I see it a moment?” Penny requested.

He gave the picture to her. She studied it and her face brightened. “Captain Bricker, look at this!” she exclaimed, pointing to an object in the car which barely was noticeable.

Everyone gathered about Penny, peering at the photograph. On the rear seat of the car driven by Mr. Cordell was a box which plainly bore the printing: “Salvage Company—Explosives.”