Offered and Lost

You'll start the Act in the Viscount's Keep. Talk to Senchal Ban to learn about a disappearance of a Qunari envoy that came to speak with the Viscount. Someone at the Hanged man might know something more regarding the ordeal. Before heading there you might want to spend some time purchasing new armor and weapons for your allies in Lowtown (Apparel Shop, Fereldan Imports, Armor Shop), Hightown (Robes by Jean Luc), the Gallows (Mage Goods), Docks (Shady Merchandise), and Sundermount (Ilen's Crafts).

Travel to the Hanged Man at night and talk to Orwald. There is a likely chance that he will attack along with his new friends. Kill them with area effect attacks and class-combo attacks. You'll learn from the scared Orwald that that the Qunari were taken the Chantry.

Travel to the Chantry and Petrice will inform you that Varnell is the one who took the Arishok's men. Travel to Varnell's Refuge and locate the captured Qunari. Regardless of your dialogue choices you will be unable to save the prisoners. Get ready to face Varnell and fanatics. Concentrate on tanking and dealing with the Templars, as the normal citizens are cannon fodder that can easily be killed off.

After the battle tell the Viscount to tell the Arishok the truth and loot the items around before leaving.