The Underworld was discovered in Ultima V by a band of adventurers who found an entrance in the Spiritwood. It was huge, and could be reached from each of the seven dungeons, since their grounds had collapsed after Ultima IV. Lord British was intrigued by the adventurer's tales and mounted an expedition into the Underworld where he was captured by the Shadowlords.
For a solution to the problem, see Objectives in the Underworld.
|Cities||Fawn ☥ Monitor ☥ Moonshade|
|Settlements||Inn of the Sleeping Bull ☥ Isles of the Mad Mage ☥ Monk Isle|
|Dungeons||Skullcrusher ☥ Spinebreaker ☥ Furnace ☥ Knight's Test ☥ Mountains of Freedom|
|Ruins||Shamino's Castle ☥ Castle of the White Dragon ☥ Shrine of Balance ☥ Temple of Discipline ☥ Temple of Emotion ☥ Temple of Enthusiasm ☥ Temple of Ethicality ☥ Temple of Logic ☥ Temple of Tolerance|
|Islands|| Claw ☥ Isle of Crypts ☥ Gwani Death Temple ☥ Ice Dragon's Lair ☥|
Isles of the Mad Mage ☥ Monk Isle ☥ Penguin Island ☥ Sunrise Isle
|Interesting Areas||Gorlab Swamp ☥ Great Northern Forest ☥ Ice Plains ☥ Knight's Forest ☥ Serpent Isle Guard Towers ☥ Western Forest|
|Settlements||Argentrock Isle ☥ Daemon's Crag ☥ Tenebrae|
|Other||Carthax Lake ☥ Catacombs ☥ Cemetery ☥ Fishermen's Reef ☥ Hall of the Mountain King ☥ Herdsman's Valley ☥ Plateau ☥ Shrine of the Ancient Ones ☥ Stone Cove ☥ Treasure Cove ☥ Vengeance Bay|