There is a puzzle room at one point, where players must turn three rocks to match the symbols on the walls opposite them, and then pull a lever to advance to the next room. Incorrect combinations result in a dart trap shooting darts at the player when the lever is pulled.
The correct combination is bird, snake, fish, when going clockwise around the puzzle, starting from the lever.
The final room is a fight against Halldir. He is a mage, who will summon copies of himself when damaged. They, and he, will attack with destruction school spells. The door to the room locks behind the player when the fight begins.
Notable loot includes a Spell Tome of Raise Undead (may be leveled), some nice armor and weapons at higher levels, and numerous soul gems.
Halldir drops an Ancient Nord Sword of the Cold, some gold and Halldir's staff, which has a 60 second Calm (works on creatures and people lower level than the Dragonborn) and Soul Trap effect. After you kill Halldir, a trap door in the center of the room can be opened to drop down into the initial room of the cavern for easy exit.
- Find Runils Journal
- Find Rjorn's Drum
- Spell Tome of Raise Undead
- Soul Gems (including Black Soul Gem at higher level)
- Halldir's Staff