Harry Potter and the Prisoner of Azkaban - J.K. Rowling

On this latest read of this book, I really wondered about Crookshanks. That character really kept me guessing throughout the series and in fact I am still wondering about him. I'll have to look up some info to get some answers. I also wish we could have heard more about Moony, Padfoot, Wormtail, and Prongs - not to mention the Weasley twins. I'd love a spin-off series about these characters, there is so much to explore there. The dementors have to be one of the scariest inventions of any author - although haven't we all felt one close by at some point? And I really want to try butterbeer!