When first entering the cave, the player will notice a column of blue light and three dead bodies around it. On a pedestal near the column is a journal, telling of a ghostly voice compelling the bandits to kill themselves on a blood-soaked rock cairn, as well as a key to the only door going further inside the cave (Key to Halldir’s Crypt). This first room has no enemies and it is filled with numerous mushrooms (White Cap, Namira's Rot, Imp Stool, Fly Amanita, and Bleeding Crown).
Slay the ghosts that come to life as you advance throught the catacambs and eventually you will come across a room holding a Nordic Pillar Puzzle. Rotate the three pillars in the room, so that the symbols on the pillars match the symbols on the walls opposite them(Hawk, Snake, Whale) then pull a lever to advance to the next room. Incorrect combinations result in a dart trap shooting poisoned darts at the player when the lever is pulled.
As you step into the final room a fight against Halldir will begin. He seems to be a former magician who uses destruction school spells again the player. When reduced to about two-thirds of his health he will use the special ability to multiply himself. These three copies use ice, fire and lightning spells. Once you defeat all three forms, Halldir appears back in the middle of the room and so the player can finish him off.
Halldir drops an Ancient Nord Sword with a random enchantment, some gold and Halldir's Staff, which has a 60 second Calm and Soul Trap effect. After Halldir is killed, a trap door in the center of the room can be opened to return to the initial room of the cavern.
- Halldir's Staff x2 (One from his Ash Pile and one that drops from his hand when killed)
- Rjorn's Drum
- Spell Tome of Raise Undead
- Numerous Soul Gems (including Black Soul Gem at higher level)
- Two Iron Ore Veins - The entrance area.
- Alchemy Ingredients, mostly mushrooms: Numerous to be found, mostly in the first room. Approximate numbers: