The Caverns of Skornheim

Regin has nearly repaired the mirror, but he needs a special material, which you will fetch for him. You'll go to Skornheim to find a perfect amethyst crystal. He's fixed your magical raft so you can get there.

You land in the sands of Skornheim and are attacked by some sort of monster which grabs Loki. You manage to free him and keep running for the cavern.

You're back on solid ground and the beast can't fit through the cavern entrance after you. Every surface seems made from crystal. Loki notices that where you walk, the crystal reflections begin to line up. Keep moving. You encounter a troll cave, and Loki tells you to run. If you fight, you might destroy what you're looking for.

The caves stretch for miles. You'll need to stop eventually but without the crystal, you'll be trapped here forever. You hear an underground river and Loki has an idea. Thor releases the water on the trolls, but now you have to escape the flood.

Loki finds a pure crystal. The cave you've found is at a confluence of ley lines, but these ley lines should not be here. Something is very wrong. The trolls begin to pursue you again and they've brought a dragon with them!

You are nearly at the entrance. Loki taunts the dragon as you duck outside and its acid breath melts the sand into solid rock. You reach the raft and thankfully the dragon can't fly so you turn towards the village. Loki says that you need to go to Vanaheim to investigate the problem with the ley lines.

You arrive at the village and give Regin the crystal. Loki will have to keep working while the mirror is repaired, but you get to rest.