Vault of Echoes
From Age of Sigmar - Lexicanum
The Vault of Echoes was a secure location that once held secrets for the God-King.[1a]
History
Age of Sigmar
The infamous Tzeentchian sorcerer Xelkyn Xerkos attacks the vault, reduces its guardians to fleshspawn, and steals the secrets from within. This and many other crimes lead Sigmar to directing Naeve Blacktalon to hunting down the sorcerer and ending him once and for all.[1a]
Sources