After years of careful research and tireless investigation, uncovering and decoding, Rejewski knew it was there. It had to be: it simply made sense. It could be no other way.
The thought increasingly haunted his dreams. The enciphered scripts unrolled before him. The maps and their Gnostic symbols were clear to him now. He knew their secrets.

In his reveries he plotted how to gain access undetected to the undercroft. Although he had yet to set his eyes upon it, he knew exactly how the niche appeared. He could visualize the Coptic inscription just below the opening.

This night was the time for action. He had rehearsed this in his mind dozens of times: each precise step to attain his goal. Soon, the artefact would be in his deserving hands.