At Dwalin's behest, you have entered Thorin's Halls to confront Gormr about his part in the theft of Hen-heledh.
You have accompanied Dwalin into the throne room of Thorin's Halls. You should speak to him before you confront Gormr.
Instead of confronting Gormr, you found him surrounded by Goblins! With the distraction you provided, he was able to escape, but Marrec sent goblins to attack you. You must defend yourself.
You have defeated the goblins, but Dwalin has fallen. You should attend to him.
Dwalin instructs you to follow after Marrec and stop him from stealing Hen-heledh from Gormr.
You have found Gormr, mortally wounded by Marrec. You should speak to him while he yet lives.
Marrec has stolen the Seeing-glass from Gormr. He must not escape Thorin's Halls with Hen-heledh.
Marrec has struck Dwalin down, leaving only you to prevent his escape.
With Marrec dead and Hen-heledh safe, you should attend to Dwalin.
Dwalin informs Mathi Stouthand, who has just entered, that you would tell him the tale of your battle with Marrec.
While you were speaking to Mathi, the Lady Arwen entered and began tending Dwalin's wounds. You should speak to her to see how Dwalin fares.