As she wrote, words appeared on a screen concealed within the wall rectangle exposed by the downward folding of the desk.

“Siona continues actions which predict violent attack on Your Holy Person,” she wrote. “Siona remains unswerving in her avowed purpose. She told me today that she will give copies of the stolen books to groups whose loyalty to You cannot be trusted. The named recipients are the Bene Gesserit, the Guild and the Ixians. She says the books contain Your enciphered words and, by this gift, she seeks help in translating Your Holy Words.

“Lord, I do not know what great revelations may be concealed on those pages, but if they contain anything of threat to Your Holy Person I beg You to relieve me from my vow of obedience to Siona. I do not understand why You made me take this vow but I fear it.

“I remain Your worshipful servant, Nayla.”

The chair creaked as Nayla sat back and thought about her words. The room fell into the almost soundless withdrawal of thick insulation. There was only Nayla’s faint breathing and a distant throbbing of machinery felt more in the floor than in the air.

Nayla stared at her message on the screen. Destined only for the eyes of the God Emperor, it required more than holy truthfulness. It demanded a deep candour which she found draining. Presently, she nodded and pressed the key which would encode the words and prepare them for transmission. Bowing her head, she prayed silently before concealing the desk within the wall. These actions, she knew, transmitted the message. God himself had implanted a physical device within her head, swearing her to secrecy and warning her that there might come a time when he would speak to her through the thing within her skull. He had never done this. She suspected that Ixians had fashioned the device. It had possessed some of their look. But God Himself had done this thing and she could ignore the suspicion that there might be a computer in it, that it might be prohibited by the Great Convention.

“Make no device in the likeness of the mind!”

Nayla shuddered. She stood then and moved her chair to its regular position beside the cot. Her heavy, muscular body strained against the thin blue garment. There was a steady deliberation about her, the actions of someone constantly adjusting to great physical strength. She turned at the cot and studied the place where the desk had been. There was only a rectangular grey panel like all the others. No bit of lint, no strand of hair, nothing caught there to reveal the panel’s secret.

Nayla took a deep, restorative breath and let herself out of the room’s only door into a grey passage dimly lighted by widely spaced white glowglobes. The machinery sounds were louder here. She turned left and a few minutes later was with Siona in a somewhat larger room, a table at its centre upon which things stolen from the Citadel had been arranged. Two silvery glowglobes illuminated the scene—Siona seated at the table with an assistant named Topri standing beside her.