Speak with
Thoralf in Goldforge
To go to
and open Fire Pool portal
Enter this cave

You can bring your own

or buy it from
Gilmur

Enter this cave

Find these rock and use

to collect 4x
Stones

Find elevator and put 4x
Stones on it to go down

Find these rock and use

to collect 4x
Stones

Go upstairs

Find elevator and put 4x
Stones on it to go down

Find these rock and use

to collect 4x
Stones

Find elevator and put 4x
Stones on it to go down

Go upstairs, find rocks, take 4 of them, find this elevator and go to
Fire Pool

Kill 250x

Speak with
Thoralf to finish the quest.