Now that you have done all you can for the dwarves in the Silvertine Lodes, Öndótt wants you to tell Thettmárr and the dwarves of the Deep Descent that mithril has been discovered at last.
'You have done all that I could have hoped for here, ${PLAYER}, and now I must endeavour to send you to the Deep Descent camp and tell them the wonderful news: that mithril has been found at last!
'Do not tarry; in fact, you should take my goat! I will stay here and defend the work you did to make the Old Silvertine City safe for my folk. I am sure Thettmárr will wish to set up camp here straight away!'
Öndótt's goat is beside Öndótt himself in the Old Silvertine City.
You should use the goat to return to the Deep Descent with haste and speak with Thettmárr.