Castle Mistmoore is filled from one end to the other with dark elves in thrall of their lord and undead raised and controlled by him. Since Mayong Mistmoore considers all to be his enemies, everyone who enters here will be attacked viciously and relentlessly by his followers. Dark elves and other creatures roam the castle during the day, and at night the undead rise to roam the castle, replacing many of the daytime creatures. Invisibility works on the daytime monsters, and invisibility vs. undead only on the undead creatures.

Trying to solo here can be dangerous unless you're familiar with the pathing, as many enemies will spawn close together. The ability to lull or cast harmony will serve you well here, though it's recommended to find a group in this dungeon if possible.

The worst danger in this zone is the trains. The biggest reason for this is that most of the trains come from areas farther in, like the castle itself, and on the way out every creature along the way will join in. All of these trains pass directly through the middle of the outer area between the tower and the lake on their way to the narrow corridor to the zone edge. The only ways to avoid these trains are to be either behind the lake or the tower, or to zone. Also, the zone shuts down after a large train since it is also lethal to pull from the line of returning monsters as they walk slowly back to the castle. The pathing is such that they run around a little, gathering friends before coming after you, invariably pulling in friends. I have never entered Castle Mistmoore with fewer than five bodies littering the entry hallway. These monsters will also hang around the entrance for some time before walking back, so it's safer at all times, if possible, to zone in invisible, because you never know who you'll meet on the other side.

There is twice castle respawn at dawn (06:00 AM) and dusk (8:00 PM) in game time; monsters change switch between night time monsters vampires/werewolves and day time monsters nobles/Musicians. Any monsters alive will respawn, any killed monsters will repop. As always, sitting down gives you level 1 equivalent agro, which means at these times of mass respawn you could end up with the whole room attacking you.

Although dangerous, this zone is arguably some of the best experience for any zone in the game, assuming you don't die frequently within. The spawn rates are fast and creatures of similar strength tend to spawn very near each other, so a group can pull a small area with good results without encountering more than they can handle. Loot is also good, as the dark elves often drop platinum, runes and words, and the gargoyles drop gargoyle eyes which are worth nine to ten platinum each.

The other benefit of this zone is that nobody who hunts in the front need die. This may be a bold statement, but if a group is smart, everyone has Spirit of the Wolf on when hunting here, and whenever there is even a question that you may have more than you can handle, whether from a bad pull or some train, every person should simply zone. The zone edge is very near and, if nobody tries to be a hero, nobody should die. Accidents will happen, and deep castle trains can have monsters capable of dealing out 500 or more hit points of damage with one spell, but overall it is a safe place to hunt.

Castle Mistmoore is reached by traveling through Lesser Faydark to the western edge of its southern border. An ancient druid ring stands at the entrance leading into the zone. Most of Lesser Faydark can be traveled safely by those who are powerful enough to fight in Mistmoore, but care must be taken to avoid the Brownie camp to the north and the Shadowed Men camp to the east. Dark elves that are quite powerful have taken up residence in an abandoned camp along the southern edge now as well, so do not run along the southern edge as a way of finding the tunnel to the Castle.