|Find Arvak's Skull|
Upon entering the Soul Cairn, along the initial path that leads to the front of the Boneyard, the Dragonborn will come across a frantic Soul calling, "Arvak, Arvak!". He will tell the Dragonborn how he and his loyal steed Arvak came to this realm and were attacked by monsters. He had told Arvak to run, and claims that Arvak is still running, and has been for a long time.
After obtaining the skull, the soul who was looking for the horse will appear nearby, and he will teach the Dragonborn how to summon Arvak.
- The quest marker may not appear on the map.
The game might not register that the skull has been acquired, thus making the quest impossible to complete.
- One way to fix this is reload a safe before picking up the skull.
Sometimes, when Arvak is first summoned, he will run away as he did before retrieving his skull.
- Solution: riding Arvak.
- The Dragonborn may see Arvak running around the Soul Cairn, even if they haven't picked up the skull.