Wedding of the Sea King

This is an adventure intended for GURPS. Its not strictly for dungeon fantasy, as there is quite a bit of role-play and social elements, but its meant for that sort of game, and that sort of point values. A secondary element is its meant to be told as a fairy tale: a King looking for a bride, a castle under the sea, and a treaty taken deadly seriously. The story is meant to be set in the town of Gazim, a sea-side desert fortress built on the edge of an evil empire and reasonably hostile to it, but it could be set anywhere with the ocean, even in Yrth (I was actually surprised just how well it fit in Yrth).