You are right. Thanks. And you shouldn't have the schematic of the sword Tocheir if I remember rightly. In another case the quest doesn't trigger.Berengar's Blade (Kaer Morhen) has another chort, I think. But only if you find the schematic after you talked with Vesemir (got to do the main quest until the start of Va Fail Elaine). Else the cave is void of any foes.