Fable II Side Quests

The man with this quest is found in Bowerstone Market. Talk to him and he'll tell you about some captured slaves in Bower Lake that need rescuing. He hands you Civilian Rescue Details which you should immediately read in order to leave a glowing trail that'll lead you out to Bower Lake.

Follow the glowing trail a bit north of the entrance to the market and you'll soon reach the small bandit camp where the prisoners are held, right on the edge of the lake. Start your bandit genocide via whatever attacks you prefer. We suggest distracting them with a Raise Dead spell. Amid the killing, you'll collect A Key, which you can use to unlock the caravan cage on the water edge and complete the quest.

Watch your quests menu and more opportunities to stop slave traders will arise. Just return to Charles in Bowerstone Market for the map to the target.