Arcane Feathers

Arcane Feathers is a side quest in Dragon Age II Mark of the Assassin DLC available if you bring Anders as one of your companions.

''An unusual bird feather has been found. See if there are more.''

Acquisition
This quest appears in Hunting Grounds - West in the middle of the map. There will be a Mabari barking up at a tree.

Walkthrough
There are a total of three feathers you need to find.

1. Hunting Grounds - West - In the middle of the map where a Mabari is barking up a tree.

2. Chateau Haine - On the left chest in the Gate puzzel room.

3. Dungeons - Right once you enter through the Crack in the Wall

Result
Once the third feather has been found a treasure cache will be marked on the map. Its location is found in the Mountainside Path after you first encounter the Tal-Vashoth Leader.

Rewards
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