Outcast's Gem

Curse the Necromancer and her designs on my power! She has taken my tower and now is seeking its secrets! She will corrupt the Soul Gem and bend it to her will. This must not be! You must steal the gem before she discovers it! Once you have it, the gem must be charged with powerful souls. The souls of Wights will be sufficient. Find the gem, |c. Charge it with fresh souls and return it to me before the souls decay within the gem. Perhaps then we can use the power of the Gem to further the desires of the Great Changer!

Travel to the Lonely Tower and recover the Soul Gem from its sealed magical container. Afterwards, charge the Gem by slaying Bleakwind Wights and at least one Guardian. Return with the charged gem to Altera the Outcast in Deathchill.