Before heading into the mine make sure that you have lots of cat potions especially if you have the dark armor set which makes everything darker when you draw your sword. While you’re in there you have to collapse some tunnels which is a side quest that you’ll get paid for after. There are lots of nekkers and the like in the mine and your breaded friends want to help , just make sure that you get the nekkers between you and the dwarves other wise they’ll just get in your way. Look to the mini map to see where to go cause all the doors and passage ways can be confusing. Cat potion and quen is what I used.
Thanks for watching