Cain leaves town after his late lunch, wishing Greta good business, and turning down the East road.
This led him through the most haunted looking swamp that he had ever seen in his life, and that was saying something, as he had been though an undead dungeon set in a Plague swamp.
He didn't even get that creepy, "something is going to jump out at me" feeling, it was more like everything was already dead. Cain did consider that Greta could have just been messing with him, and sending him off course, but the road was reasonably solid and continued on through the swamp without any downed trees or overgrowth, so it might be fairly well traveled.