PoA: Chapters 21&22

This week we finish the book! Hermione and Harry go back in time to save Sirius and Buckbeak, we relive a lot of what just happened, and then Harry casts a patronus to save everyone. Sirius escapes on Buckbeak and Snape loses his mind. Lupin resigns so he thinks its cool to give the map and cloak back to Harry. Harry and Dumbledore have their traditional end of book chit chat and Ron gets a new pet.

We also recap the highs and lows of the book and try to figure out how time travel works