Board Thread:Lore Discussion/@comment-68.45.229.57-20130720115140/@comment-11444045-20131122060210

I know that, but you can also not let it happen on the Castle Volkihar. I mean you can not ask serana for the blood cursed arrows, or even use the Sunhallow arrows. Only difference is with dawnguard Isran wants to keep it guarded. But it's a more useful tool with the dragonborn than dawnguard.