The Silver Citadel is a vast magical structure on the Fringe Plane of Endaraen. While it is ancient in its own right, the citadel is built atop the even older Sun Vault from which it channels power.
Through the ages the citadel has served many purposes, but from the Eighth Age onward it has been most notable for containing the Vault of Curiosities.
The citadel is surrounded by the Forest of Blades, which serves both to bolster its defences and as a valuable source of rare materials. Through most of this period the citadel was controlled by the Chorus of Remembrance, but it has recently been conquered by their erstwhile allies the Regulators.