Nocturne - The Pantheon: The Pantheon was an extension of the Salamanders' fortress-monastery on Prometheus, the moon of Nocturne. Though, in truth, this bastion of the Chapter was not much more than a simple spaceport linked to an orbital dock where the Chapter's modest armada of vessels could be refitted and repaired. Rank-and-file battle-brothers of the Chapter were restricted from entering the Pantheon. Many Salamanders Astartes have never even seen the Pantheon, though they all knew that at its centre was a small, circular deliberation chamber located deep within the subterranean heart of Prometheus.Only matters of dire import or of profound spiritual significance to the Chapter were ever discussed in the Pantheon. The chamber possessed eighteen seats, which represented the Salamanders' original status as the XVIII Legion of Space Marines. The Chapter had retained this numerical designation after the Second Founding broke up the original Space Marine Legions into their Successor Chapters, an event in which the Salamanders had been unable to participate because of their heavy losses during the Drop Site Massacre.The head seat of the Pantheon was reserved for the Chapter Master, an honour that had been Tu'Shan's for nearly fifty standard years. Thirteen were for the other officers of the Chapter: six to the captains of the remaining companies; one each for the Apothecarion, Librarius, Chaplaincy and Chapter fleet; with a further three devoted to the Armoury and the Masters of the Forge, an unusual triumvirate but necessary given the Salamanders' predilection for weaponscraft.Three of the seats were for honoured guests sequestered by the Chapter Master and with the agreement of the rest of the council. Praetor, the Firedrakes' (1st Company) most senior Veteran sergeant, often assumed one of these seats. The Librarian Pyriel occupied another. The last position had remained empty for many standard years, since before Tu'Shan had even assumed the mantle of the Regent of Prometheus.It was in the Pantheon that the Masters of the Salamanders would sit to consult the Tome of Fire. This artefact of the Chapter had been written by the hand of the primarch Vulkan in ages past. Though many within the Chapter had never seen it, let alone perused its pages, they knew that it was full of riddles and prophecies. Rumours held that the words themselves were inked partly in Vulkan's blood and shimmered like captured fire if brought up to the light.The Tome of Fire was not merely one volume, as the name suggested, but rather dozens arrayed in the stacks around the circular walls of the Pantheon. Deciphering the script of the Tome of Fire was not easy. There were secrets within, left by the primarch for his gene-sons to unlock. The volumes foretold of great events and upheavals for those with the wit to perceive them. But perhaps most pointedly, the Tome contained the history, form and location of the nine artefacts Vulkan had hidden throughout the galaxy for the Salamanders to unearth.Five of these sacred relics had been discovered over the centuries through the travails of the Chapter's Forgefathers; the locations of the remaining four were embedded cryptically within the Tome's arcane pages. Chapter Master Tu'Shan and those masters still on Prometheus would regularly convene and pore over the Tome of Fire in the hope of unearthing some clue that would unlock the location of one of these ancient artefacts crafted by their primarch.