Not for the first time, an argument has broken out over the breakfast table at number four, Privet Drive.
Number of chapters: 18
Plot: A house-elf called Dobby is determined to stop Harry returning to Hogwarts for his second year, but thanks to an invisible (well, sort of) car he makes it to school on time.
But he quickly wishes he hadn't, as something nasty is terrorising the pupils and teachers, putting some of them in weird coma-like trances.
It turns out a weird snake thing called a Basilisk is behind the attacks, and although at first Harry gets the blame, it turns out it's getting help from an unexpected source within the school.
Of course it's a Harry Potter book, so the baddie is really Lord Voldemort again (sort of) and Harry manages to defeat him with the help of a very old sword and an extremely loyal feathered friend.
DADA teacher (and their fate): Gilderoy Lockhart. After trying to run away from danger his memory is wiped when a spell goes wrong.
Best Neville moment: Lockhart decides to release Cornish pixies into his classroom. As usual an accident strikes Neville and the pixies leave him hanging from a candelabra.
Last line: And together they walked back through the gateway to the Muggle world.