Audra Firan will ask you to get the key, which is in possession of one of the Jottun.
You’ll find him a bit further to the northM9(3).
After killing the beast fire up the gate and talk to the woman again.
Together with her you have to go to Ghennig ruins, where you’ll fight with Witch Knight Khleran.
Map of Ghennig
1 - Khleran
Once you get inside, keep going to the right.
At the end of the stairs you’ll encounter Khleran with “bodyguards”.
During the fight first make a run at kill a group of Jottun.
Your companion should take care of the main enemy in the meantime.
Once beasts are dead, focus all your attacks against Tuatha’s leader.
You have to watch out for his fast attacks, because they can inflict huge damage.
After his death, Audra will say goodbye, thus ending the quest.
True to the Cycle
Near the large crossing you’ll encounter Fae named LiordranM9(6).
He will give you a task to place a ring in undergrounds of his beloved - Ragnil.
This fight is really challenging, so I suggest starting it in Reckoning mode.
Once your opponent is dead, go further into tunnel.
When you finally complete the quest, return to Fae to collect your reward.
You’ll meet him next to the tunnel entrance.
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