The Oathbreakers is a quest in Tyranny.
Tarkis Arri, leader of the Vendrien Guard, wishes to meet you and discuss the possibilities of an alliance, citing your various acts of mercy towards the rebels since your arrival in Vendrien's Well.
- Head to the secluded grove.
- Talk to Tarkis Arri and her inner council. She offers you her fealty and the loyalty of her men as officers of the Court under your authority (Yeomen Wardens in local parlance). If you want to start the Rebel questline, do so.
- Return to the Disfavored camp and attend the meeting of the Archons. Choose either Archon to lead the charge, fermenting dissent.
- Travel to Vendrien's Well Citadel and talk to Tarkis Arri. Your Fear with Eb and Wrath with Vendrien Guard will receive a major reduction. You'll also receive a bonus to your Loyalty and Favor with the same.
- Eb will join your party and become available for deployment. Once you make the necessary assignments, head to the eastern courtyard. Wipe out the Disfavored. The Earthshakers will collapse the wall, forcing you into a confrontation with Iron Marshal Erenyos. Slay her and collect the Iron Marshal's heirloom blade.
- Return to the entrance. The Chorus under Fifth Eye breaks through, leaving a small rear guard for you to defeat. Deal with them, then head into the barracks. Fight your way through the Chorus forces to Ascension Hall.
- Confront Fifth Eye. The situation mimics the one during Assault on the Citadel and your choices are similar. You can use Lore to get rid of the Blood Chanter, Athletics to get rid of the Scarlet Fury, or bluff and make them all weakened. You can also betray your alliance and begin the anarchist path.
- You automatically claim the spire. The quest ends.