- Harry and Hermione go to someplace called the Forest of Dean to regroup/recover.
- They discuss that picture that Harry had been asking "Bathilda" about in the house. Hermione has figured out that the guy in the photo is someone called Grindelwald.
- Harry explains why he was interested: It seems that he'd seen Grindelwald in that vision about Voldemort's search for a wand maker.
- In other wand-related news, Harry's wand is broken—it got broken when they left Godric's Hollow. Hermione has only just now broken the news to Harry.
- Harry is obviously devastated, but he tells Hermione to go inside while he keeps watch with her wand.
- While he's on duty, a doe Patronus appears. Even though it strikes us as a little dangerous to leave camp and go following a Patronus cast by an unknown figure, Harry does just that.
- The silver doe takes him to an icy pond and then disappears below the surface.
- When Harry peers through the ice to see where the doe has gone, he sees the sword of Gryffindor at the bottom of the pond. Well, isn't that lucky.
- Harry cracks the ice, removes his clothes, and goes in after it.
- But wait, he didn't take everything off: He still as the locket on. And the locket does not want Harry going anywhere near the sword of Gryffindor. It starts to strangle him.
- Harry tries to get back to the surface, but he's stuck under ice.
- We see someone arrive above, and that person saves Harry and gets the sword.
- It's Ron to the rescue.
- And who cast the Patronus that led Harry to the sword in the first place? As it turns out, it wasn't Ron. There are lots of unanswered questions about how this little miraculous find came about.
- Anyway, no time to ponder all that: it's Horcrux destruction time.
- Harry thinks that Ron has to be the one to destroy the Horcrux. He's reluctant, but Harry insists.
- Harry tells the locket to open using Parseltongue, and this horrifying black mass comes out and starts taunting Ron. Ron is paralyzed at first, but he eventually gets up the strength to destroy it. Thank goodness.