The Unremarkable Dungeon is located to the north-west of Terinyo. To find it, you must go to the Small Cave, and explore until you find some stairs going down. The only way to get to the High Mountain Village (and the guaranteed shop and companion there) is through the Unremarkable Dungeon (exit is at bottom level 8). The name "Unremarkable Dungeon" does not appear while playing the game. The dungeon is known only by its handle "UD"; however, if the player dies in the UD, the death report will specify "in an unremarkable dungeon".