I was writing something, but this is the same thing only likely phrased better. Maybe throw in a mention of who the Seeress is? I don't think Steinarr actually knows she's the mother of his brothers who Horra killed...that probably doesn't need to be in the vote, though.
[X] Answer him honestly, like a loyal daughter should, and hope that you can keep him from making a rash decision (Hugr (Silver-Tongue))
-[X] Between Asveig begging you not to tell him, the Seeress saying it would lead to ruin, and at every turn being told 'It would end poorly', you held your tongue and sought to find a way to manage it. It was only on the Raid that you learned the truth of the matter, and only then that you learned of the enchantment that bound the tongues of those who knew better--and by then, Father was already under the spell that you and your company had just broken. Your enemy was kin to half the valley, hiding behind their aegis while working their dark crafts, a sorcerer who has delved deep into forbidden arts pulled from the depths of the earth. Shielded by some spell that deflected the attentions of any who would know the truth of the matter and saw their words twisted away from exposing him, it was only now that you had a path to see his shield breached, to know what needed to be done to cast down the protection that would see his killers run down by the best and mightiest of the valley. It was only now that you learned of the warrior he was crafting, to turn against you all--an expert wielding the power of Water, strong enough to erode a stone troll in moments. And you still needed to discover the place where he worked his darkest arts, in order to see him cast beyond the Law, and exposed to our righteous vengeance.