In Bravil, the Hero will hear that Aleron Loche is having problems. The rumors point to Aleron's wife, Ursanne. Go and speak with her at Aleron Loche's House or at the local Temple of Mara.
The fort is used by Kurdan to host a hunt to the death. In order to escape, the Imperial, Nord, and Orc hunters must be killed for the keys they carry that should open the gate which blocks any type of escape.