|Consecrated Swordmaster, Withered Hand Brute, Withered Hand Defiler|
|Myrkwasa, Alik'r Desert|
After his new city of Sentinel was attacked by pirates from the Abecean Sea, the Grandee Yaghoub decided he would build a fortified subterranean storehouse where the Alik'r's greatest treasures could be kept safe. Thus was built the Impervious Vault.
The Impervious Vault is a fortified storehouse buried underneath a tower in the city of Sentinel. Built by Grandee Yaghoub as a storehouse where the Alik'r's greatest treasures could be kept safe, it is currently the home of the Ansei Wards.
Four Sentinel Gallants are stationed outside the vault. Royal Bodyguards line the interior of the vault while the Withered Hand aren't occupying it. Sentinel Sergeants and Ash'abah Warriors are located in the Ansei Wards' chamber during this time as well. A friendly, unnamed Nereid is atop of the stairs above the Ansei Wards.