First In order to do this you'll need to get through act 1.
This is so you unlock all regions. So continue with the main quests until you can go anywhere on the map. Once you've completed the first act just look through your quest scroll 4 over till you get to " Carnán Quests "
First quest will be " Violent Nature " completing this will start unlocking the other quests in this line. You will need to complete all 9 quests the last quest is " Army of The Dead "
Highly recommend recruiting a high level bodyguard for this mission as Zog The Eternal and his men do get irritating. Also there is a captin around each totem.
Also note completing " Fire and Ice " grants you the ability to summon a drake ( dragon )
Message for help.
Lemme know if I can add anything else to this guide.