While exploring the Rivain Coast in Dragon Age: The Veilguard, Rook is likely to stumble upon the Warden Castle and, within it, the Warden Vault, with good loot for the taking if they can solve a few puzzles. After recruiting Taash, players can return to the Rivain Coast and explore the area. Several secondary Region Quests are here, particularly in the large Warden Castle ruins that take up a good portion of the map. In the lower rooms of the Castle, players can find the Warden Vault and pick up the quest.