Board Thread:Skyrim/@comment-112.198.82.199-20130910021345/@comment-4092092-20130910042532

http://elderscrolls.wikia.com/wiki/Soul_Cairn_(Dawnguard)

All souls traped in a Black Soul Gem, even the Black Star soul gem go to the Soul Carin.

I choose to give the Star to Nelacar  and get the Black star soul gem, because well it's better.

But also because