Hello, did anyone else got this? You get this quest in Kargath after the Dark Iron killings in BRD. You gotta go to the fortress in Burning Steppes, you fight Grark Lorkrub, complete the quest, take the escort quest Precarious Predicament. We were only 2 and failed the escort, upon abandoning we can’t take the quest again.
EDIT Seems you can go back to Kargath to take the Thorium Shackles again, then you fight Grark again.