"Same men I pushed out!" cried Koku, much excited.

There was no doubt of it, and, as the images faded from the screen, caused by the men running away, Tom and Ned realized that their rivals had tried to put their threat into execution—the threat of making Tom wish he had taken their offer.

"I guess they came to take my camera,—but, instead the camera took them," said the young inventor grimly.

CHAPTER VIII

PHOTOS FROM THE AIRSHIP

"Well, Tom, how is it going?" asked a voice at the door of the shop where the young inventor was working. He looked up quickly to behold Mr. Nestor, father of Mary, in which young lady, as I have said, Tom was much interested. "How is the moving picture camera coming on?"

"Pretty good, Mr. Nestor. Come in. I guess Koku knew you all right. I told him to let in any of my friends, but I have to keep him there on guard."

"So I understand. They nearly got in the other night, but I hear that your camera caught them."

"Yes, that proved that the machine is a success, even if we didn't succeed in arresting the men."