I have a strange issue...I was trying to summon Valtr for the Laurence battle and realized I suddenly could not do so. Reloaded, still not working. Traveled to the forbidden woods and his helmet was in the exact location he normally stands, and the hunter attacked me when I tried to exit. I killed him and reloaded, Valtr is still gone. Returned to the DLC, he still cannot be summoned. I want to add that I did not kill more than two Vermin, so I have no idea what happened. I heard him say some dialogue I've not heard before, but I can't remember what it was. Did Valtr somehow die?