This quest begins once you have pledged to East Anglia from the Alliance Map in your longhouse at Ravensthorpe. You should begin by making your way east to the town of Northwic. The fastest way to get there without fast travel points is by longship along the Deod River to the Wensum River. When you reach the town, enter the longhouse to confront Finnr.
When you first speak with Finnr there will be a number of dialogue options. Choose any according to your role playing preferences, as they won’t impact the story. When the cutscene ends, heath north to the gates of Northwic and speak with Oswald. You’ll find him speaking with a crowd of Saxons and Danes. When he’s done go through the motions of dialogue, then mount up and follow Oswald.
When you reach Beteleah Farm Oswald will note that there’s something not quite right about it. After noting the presence of smoke, Eivor will ask Oswald to wait. You should now enter the farm and defeat any Rued’s clansmen, then return to Oswald. After a brief discussion, agree to join Oswald for dinner at Elmenham, a town just northwest of Beteleah Farm.
When you enter the longhouse a cutscene will play, during which the brothers Brothir and Broder antagonize both Eivor and Oswald. Eivor insults both of them, which leads to a fist fight. This fight shouldn’t cause you much trouble. However, if you’re finding it difficult to fight both at the same time, there are two skills in particular which will make it much easier: Brush with Death and Sprint Attack. The former will cause time to slow down for a brief moment each time you successfully dodge an attack, while the latter allows you to inflict massive damage if you perform a basic attack while sprinting. You’ll want to intersperse this combo with a number of basic attacks, since each one replenishes your stamina.
When both Brothir and Broder are defeated, another scene will play and the quest will end.