Birna in Winterhold tells the Dragonborn about Yngol Barrow and a bad deal she made. She wants to get rid of the Coral Dragon Claw that offers for sale for 50. As the Dragonborn explores the barrow, non-hostile glowing blue balls of light emerge one by one and start following them. However, no enemies appear until the end of the dungeon.
In the last room, a powerful, leveled draugr is encountered. If no radiant quest is active for this location, this draugr will be Yngol's Shade. Upon defeating him, the Helm of Yngol, an ancient Nord helmet, is earned. Removing the helm from his corpse will open the last gate.
However, if there are any radiant quests active, such as to retrieve the Helm of Winterhold for the Jarl of Winterhold, Yngol will be replaced by a Draugr Deathlord or Dragon Priest. In this case, there is no way to open the last gate as the Helm of Yngol will not be available. The Dragonborn must retrace their steps back to the entrance to be able to leave the dungeon.
- Instead of buying the claw from Birna, it can be collected from a pedestal after solving the pillar puzzle.