The Watch make camp at the top of a hill protected by an old wall. Ghost doesn't like it there and Grenn an Jon think it's spooky, which ordinarily would just be silly but we know there are Others and Children and invisible shadow assassins about. The plan is to sit on the hill burning fires and see if either Benjen Stark or Mance Rayder turn up.
Ghost does his best Lassie impression and leads Jon off into the woods. Jon almost gets lost in the woods following him. It's not Timmy stuck down a well, but a a cache of weapons (including some obsidian knives, which probably means something important*) wrapped up in what just might be uncle Benjen's cloak.
* Back in GoT Bran gets a lesson from Maester Luwin about the Children and how they used not metal but obsidian, "forged in the fires of the gods, far below the earth". Bran and Rickon both get obsidian arrow-heads to play with.
