Is gained automatically at the start of Act 3, assuming Fenris was recruited.
Visit Fenris at his mansion. Then you'll encounter him and Aveline discussing something regarding Aveline finding what Fenris was looking for on a ship. Aveline ends up storming out of the mansion, frustrated by Fenris' attitude.
As Hawke begins conversation with Fenris, Hawke discovers that Fenris has found his sister and sent her money for the journey to meet him in Kirkwall. Upon further investigation, Fenris explains that he feels this is a trap set by Danarius to recapture him and asks Hawke to accompany him to ascertain if his sister is really here.
It doesn't matter if you agree to aid Fenris or not.
- The Alone quest is started (even if you refused to help Fenris).
- If you agree to help Fenris then Fenris: friendship (+5) (if Friendship exists).
- If you refuse to help Fenris then Fenris: rivalry (+5).