“Warned of what?” asked Judy. “Were they told that the film would give them nightmares?”

“Yes. As I told that young ad man, it’s still in the experimental stage. It’s dangerous—”

“As dangerous as an atom bomb. That’s what you said,” Judy reminded him.

“And that,” declared the projectionist, “is exactly what I meant. The day a man’s thinking can be controlled without his knowledge will be the day that marks the end of freedom.”

“No!” cried Judy. “We won’t let that happen!”

Mr. Lenz gave Judy’s hand such a grip that she winced, but afterwards it was good to remember. And there were no more nightmares, for Judy at least. After she had talked it over with Peter she knew exactly what had happened and what they had yet to do.

CHAPTER XXIII
A Curious Letter

Shortly after Peter was discharged from the hospital, a letter came, addressed to Irene and postmarked Roulsville. It bore no return address.

“That’s funny. It was forwarded to me from the studio,” Irene said, turning it over in her hand. “My show is on a local channel. I don’t have any fans in Roulsville.”