Oblivion was the lair of Lord Vhalantru, the beholder mage and Cagewright conspirator disguised as a Cauldron noble. Beneath his manor is a series of deep shafts and tunnels, no doubt carved out by the beholder’s disintegrate ray. Secured by thick stone doors warded with magical traps and locks that can only be opened by casting a specific spell into them (corresponding to each of a beholder’s natural eye rays), Oblivion contains vast riches and dark secrets.