His jaw dropped. “How do you know my name? Who are you? What is this pl.⁠ ⁠…”

“If you’ll be seated, I’ll be with you in a moment.”

Brent saw that the elevator would stay here until he got out. He stepped into the room, and the door sliding shut behind him didn’t help his morale any. He was into it up to his neck, and the other team had taken complete charge. He sat.

The redhead pulled the sheet of paper out of her typewriter and pushed it into the strange wall. It once more had the undersea look. Brent kept his eyes averted until she turned to him with a slight frown furrowing her forehead.

“You have been very interested in Arthur Di Costa’s activities, Mr. Dalgreen. Perhaps there are some questions you would like to ask me?”

“That, lady, is the world’s best understatement! Just what happened to him today⁠ ⁠… and what is this place?”

She leaned forward and pointed. “You’re responsible for Mr. Di Costa’s visit here today. You were observed following him, so we brought him in, in the hope that you would come also. The message he received was a code word designed to trigger an automatic response planted in his mind. He came directly here, controlled by the posthypnotic suggestion.”

“But the note,” he exclaimed.

“A simple matter! It was written on a material made entirely of separate molecules. A small charge of energy held them together for a brief period of time. The charge leaked out and the material merely separated into its constituent molecules.”