You can always become a vampire.

Skyrim soul cairn arvak's skull. So, in short, im doing the dawnguard questline and finally got to the soul cairn. Use any weapon you have on. The pedestal will be in the center of the small altar with arvak’s skull lying on top.

It's a looong wall but keep walking alongside it. A handful of mistmen will appear when you are close to the altar. The portal takes you to the southwestern edge of the soul cairn.

Arvak's skull must be located in the soul cairn to free him, though arvak can occasionally be seen running through the soul cairn. If you walked outside the back door of the lab you should have a fast travel point. Go right, and hug the castle wall.

Arvak's skull can be found due east from the front gate of the. He can be summoned with the apprentice level conjuration spell summon arvak. I always let her do soul trap trick.

Along the way, you'll find bonemen, keepers, arvak's skull (for a new mount), quests, spell tomes, gems, and a returning. You can discover arvak's skull east of the location where you find valerica; Crimsoncorp 10 years ago #7.

I found the skull by chance but don't know where the soul is to return it. This quest can only be started within the soul cairn.it can be started. Find serana's mommy in the castle entrance.