The Vault of Glass

Set into the heart of the Gnarled Stronghold, While touched by the light of the sun, the entrance is sealed by a large dome of what appears to be smoky opal. When touched by the light of the moon, this opaline dome melts to reveal a spiral staircase. The arrangement and contents of the vault rearranges and changes at the will of the Ageless Lock and by extension is a part of the semi-sentient cube. Typically the Vault is filled with challenges used to test those seeking to use or serve the power of The Ageless Lock.