His task (and reward) is conditional on killing the lurker gnawing at the dam: he sends you to its nest across the lake, then you report back to him.
New Camp dam — Chapter 1: Oversees the camp's dam; offers the dam-lurker job.
Quests Homer takes part in across Gothic 1 Remake.
Items Homer carries in Gothic 1 Remake.
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Homer can be found in the New Camp (Digger).
You: Did YOU build that dam?
Homer: Yes. Way back when we started this camp. Everyone helped, of course, but I led the construction.
Homer: Used to be an engineer back in Khorinis, before ... ah, well. Let's not go there.
You: You looking for something?
Homer: Yeah - leaks. I have a hunch that a lurker's been gnawing at the base of the dam.
Homer: Those beasts love to sharpen their teeth and claws on underwater rocks.
Homer: I wouldn't be surprised if the dam caved in if it goes on like that.
You: How is the dam?
Homer: Strong as a fortress.
You: Where can I find that thing?
Homer: Try the other side of the lake. People rarely go there, so it's possible it has a lair around there somewhere.
You: That lurker is food for the crows.
Homer: Good work. I'll ask the Rice Lord to lend me some of his guys so we can start the repairs.
Homer: I'll sleep a lot easier tonight.
You: Can I help?
Homer: Sure you could - stop that beast from gnawing at the wall.