LEGEND
Up Arrow = Ladder Up
Down Arrow = Ladder Down
Down Arrow in a Circle = Hole leading down (this is a one way trip)
T = Trap (field, bear, and spike traps)
Squares, Rectangles, and circles = Represent buildings and man made objects
Vertical Wavy Lines = Fire Pits
Parallel Lines = Cage Wall
You can find this dungeon on a small island near the Shrine of Honesty. It has no real significance to any of the games quests and there isn't much treasure to be found (save what you pull off of dead monsters.) Now ill make a qualifying statement now to save trouble. I hate this dungeon ... its my least favorite and always has been. As a result the notes i have for it are more related to pulling the game apart with the U6 Editor then its having played threw it. Out of the dozens of times I have played and beaten Ultima 6 only in one out of 4 or 5 did i ever actually visit it ... and I have only explored it completely once. This will be a hard guide because of that ... and because i wont be going back here in U6O if i can help it. This is also why I am doing this guide first ... like I said, if i don't do it now ... I wont do it later.
One of the most obvious problems with exploring this dungeon is that on every level and around nearly every corner you are going to run into traps. If you are here for any length of time accept the fact you are going to take damage from traps frequently and in all likelihood repeatedly. That makes it VARY IMPORTANT to keep all of your party members healed and ready to fight. If you are not paying attention it is vary easy to loose track of how much damage they are doing over time, and wile a trap may not kill you outright it will make the many Many monsters down here much more dangerous to weakened parties. Other solutions are the heavy use, and liberal application of Purple Potions and Protection Spells, one of the effects of these is to protect you from traps and they can be a HUGE asset down here.
Another problem, less obvious but far more dangerous is that it is vary VARY easy to get lost down there. This place is a maze of tunnels and dead ends. It was designed to be a Maze, and people build mazes NOT to keep people out ... but to keep them in. High level characters may be able to breeze threw fairly easy but once you start running out of potions, reagents, and food, the endless waves of monsters you encounter trying to find your way out again can eventually pull down even high level party's.
Level 1
Like in many places here you will be encountering unavoidable traps the moment you walk in the door. check with the next level map to find out where you want to go before you waste time, health, and magic on a dead end.
Here is where things get more interesting. Ladder B drops you right in the middle of a set of spike traps then drive you threw some more only to deposit you at ladder G (right next to where ladder A would have taken you in the first place). C is also blocked off by traps ... and will lead to ladders I and J. Both of these ladders will lead to Completely different dungeon sections, so remember which one you took so you can get back if you need to. If you take Ladder A in the beginning the only real place to go is ladder H which will deposit you to the same place as Ladder I.
Level 3
The 3rd level is the largest and by far the eraser of the 4. you will find some evil wizards to the north and ladder L. Don't take the 4 holes in a square formation at point M, it will drop you right in a fire pit on level 4 and you wont be able to come back this way.
NOTE: Ladder L on this level leads to the bodies of some adventurers (one of them has a magic staff, a protection ring, and a rejuvenation ring.)
Level 4
If you dropped down the hole at point M on level 3 you will find yourself in a Fire Pit with no ladder up. Don't panic, crawl out of it and make your way down the tunnels past the next group of evil wizards then back up the ladders to the ladder hub on level 2. if you fallowed the ladder path C in the beginning you may wind up down here anyway. you can Make your way past the few traps here and tangle with the wizards if you like.
Dungeon Notes - There are lots of Evil Wizards and Necromancers who carry decent gold and will sometimes have potions in there inventory. Close distance and kill them fast because if you ignore them there spells can really hurt you given the chance. Sometimes they are accompanied by skeletons (it may be just me but i have found some of my best + Swords from them.) I wouldn't bother with the people on in the cages, there AI makes them Hostile NPC's and (wile they cant reach you) will attack you if they could. You will also run into Lots of Corpsers, those fun loving mole monsters that grab you by the feet and drag you underground. They can end up being tiring sometimes (once i had my entire party under ground for about 5 full minutes as each time one of them escaped they got pulled down by another corpser before i could do anything with them)
As Per traps, if you have access to the Reveal spell it will show you where all the traps are and (if your lucky) where you can go to avoid them. Spike traps however (In U6O at least) cant be removed untill the "Vanish" spell works again.
Addendum
Normally at this point i include the description text from a few pages of a strategy guide to Ultima 6 I found a wile ago ... however I am missing the page to this one. If I find it I'll include it then but in the mean time ... happy questing all.