Sanctum Sanctorum

Space Marines Portal Grey Knights

The Sanctum Sanctorum is a section of the Citadel of Titan. In many ways, this chamber is the very heart of the Grey Knights, for it contains the accumulated knowledge of their long history. Psychic abilities, closely-guarded technological secrets, and other tools unique to the Chapter are all kept here.^[1] The Sanctum has a standing guard of 20 Battle-Brothers drawn from the Grey Knights Fourth Brotherhood.^[2]

In one corner of the Sanctum Sanctorum lies a stasis vault, a time-sealed prison holding tesseract labyrinths, each of which contains the captured essence of a Daemon.^[1]

In the darkest chamber of the Sanctum Sanctorum lies its most secretive, closely guarded, and sinister vault – the Librarium Daemonica.^[1]

Sources

• 1: Codex: Grey Knights (5th Edition) pg.10–11
• 2: Codex: Grey Knights (8th Edition), pgs. 14–15