Fringilla Vigo is not as grateful for deliverance as you might have hoped. Sorceresses, eh?
The Witcher 3: Veni Vidi Vigo
This quest is one of three child quests necessary to complete Battle Preparations. I suggest doing it first.
Fast travel to the Marlin Coast, the closest signpost to your waypoint. Meditate until nightfall if necessary, then swim out towards the fleet.
You need to avoidi the lights. It’s much easier to do this on the surface, as underwater you can’t see the borders of the spotlights. Swim around and between the lights until you reach the far side of the search area – as opposed to the shore side, see? – and then sneak towards the big ship in the middle. Its anchor chain is not lit up, and as you approach, guards will call that they recognise you, and stand down. Approach any other ship and you’ll be shot.
Fringilla teleports you back to Kaer Trolde and the quest concludes. One down, two to go. Let’s go off looking for The Sunstone next.
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