"What did you have in mind about that new film we're going to release to-night?" Mr. Baker asked.

"I'll explain that presently. First, tell me how long it will take you to make a short section of film, say enough to show for about ten seconds?"

"Oh—not long. But what of?"

"I'll explain that presently. But you could make such a section of film, develop and print it, and insert it in the picture you are going to show to-night, if you had to, couldn't you?"

"Yes—if we had to. But what's the idea?"

Duvall took a bit of paper from his pocket and handed it to Baker.

"I want you to make a picture of this, and have it inserted in the film at any convenient point—say at the beginning of the second part. And you had better have the cutting and pasting-in done by some trusted person, under your personal supervision."

"But," said Baker, gazing in amazement at the bit of paper Duvall had handed him. "What's the idea of putting this in our picture? It wouldn't do at all."

"Look at that telegram Mr. Edwards just gave you. The writer says in it, 'I shall be there.' Now if the person who is causing all this trouble is going to be in the audience at the Grand Theater to-night, it is our business to find her. I say her, because I am convinced the guilty person is a woman."

A look of comprehension began to dawn upon Mr. Baker's face.