Chapter 6-16 A Very Frosty Christmas
- At the Burrow Harry tells Ron what he overheard Snape discussing with Draco. Ron says one can't break an Unbreakable Vow, otherwise you die. Fred and George also came home for christmas, and Bill and Lupin are also coming. Mrs Weasley decides Fleur will have to bunk with Ginny. Mr Weasley only arrives on christmas eve. They are listening to Celestina Warbeck singing. Mr Weasley tells Harry about the lack of success the Ministry has so far. Harry tells him too about Draco and Snape, and Lupin also listens in. Mr Weasley trusts Dumbledore's judgment about Snape, therefore he trusts Severus. Lupin says he neither likes nor dislikes Snape. Snape did after all every month made the Wolfsbane Potion for him while he was teaching at Hogwarts.
- Lupin tells Harry he has been underground lately, living among the Werewolves, nearly all of them are on Voldemort's side. He was spying. Greyback is their leader, it was him who bit Lupin. Harry asks if he knows the name Half-Blood Prince and tells about his old Potions book containing spells like ¤ Levicorpus, but Lupin knows nothing and many people used that spell. Later in the book he searches the date it has been published, on suggestion of Lupin, it was nearly fifty years old.
- Harry asks about Tonks and why her Patronus changed, Lupin says that can sometimes happen because of a great shock or emotional upheaval.
- Suddenly Percy arrives together with Rufus Scrimgeour the Minister of Magic. Scrimgeour takes Harry apart for a walk to talk to him. Scrimgeour asks about Harry and Dumbledore and talks about the Ministry and finally comes to the point, he wants Harry to openly support the Ministry to boost public moral and the Ministry image. Harry would need to pop in from time to time, he would have opportunity to speak to Gawain Robards, Head of the Auror Office. Harry does not want to nor approve Ministry actions, reminding Scrimgeour of cases like Stan Shunpike. Harry does not want to be used.