Ylva sits in the Seminary scriptorium, parchment in front of her and the precious book she is copying on a lectern beside her desk. A lamp hanging in the window provides light for her work. It shines out from the small tower, its light lost in the vast dark sea. Out in that sea, a tall sail moves towards the seminary, sailing north with the wind. Small boats land at the foot of the rocks at the base of the seminary, and shadowy figures creep up towards the wall rising from those rocks. In her room, not far from the southern wall, Ylva looks round, alerted by some small noise.