Sigfried: I am in Benny's part, and I dunno what I need to trigger to make the elder go away from his cave.

First time I tried this part, he was simply gone from his cave, but i ended up failing the story and having to start over.
But now, I am on the second day, after the woman's sacrifice and after talking to the mutant boy.
I doesn't matter what I do, the eleder is always in his cave and I can't steal the lottery bag.