Escort Galen out of danger, then find his camp in the Swamp of Sorrows and open his strongbox.
Please help! These creatures are going to eat me!
Help me out of here, and I'll give you a great treasure! It's in my camp in the swamp north of Stonard, but it's locked in a strongbox that can be opened through a trick that only I know.
If you help me escape, then I'll teach it to you.