Whispers through the Ironfold speak of rumblings beneath the ground and strange shadows lurking just out of sight.
'${PLAYER}, I must speak with you. Ever since the Iron Hills shook and caused damage to Járnfast, I have heard strange stories. Aye, I have not paid mind to these tales of rumblings from beneath the ground and strange shadows lurking just out of sight. It would seem that I can not ignore these stories any longer.
'On this day I have received similar notes of concern from both Hammerstead and the Dáinlik. I hope it is nothing more than a coincidence, ${PLAYER}. Please speak with Rísti Graver at the Dáinlik and Aflur Smokebeard at Hammerstead. Find out what it is they are concerned over and report back to me. I do not have time to dwell on this further, but I can not ignore these trusted dwarves.'
Rísti Graver can be found at the Dáinlik in the Ironfold, while Aflur Smokebeard can be found at Hammerstead in the Ironfold.
You should talk to Rísti Graver and Aflur Smokebeard.
Investigate the entrances to the mine within Járnfast.