main thread
Anger all three of Brencis's officers enough to be offered a duel, and win all three.
Take the parley Brencis offers once his officers are dead.
Decide how much of the surrounding valley you engage with on the way.
The same objective handled in a different form. Not a cosmetic swap.
Daytime progress is made as human Coen: talking to people, investigating, and fighting with sword and hexes.
At night the same ground is covered as a vampire, with wall traversal, Shadowstep repositioning and wolf-form movement opening routes that are closed by day.
The deadline can pass. The game continues afterwards, but Coen's family may suffer for it.
The structure is official. The three-officer route to Brencis is reported by a retail walkthrough, which also estimates that a player who ignores side content can finish it inside seven to ten days — that figure is one person's play, not a published number.