why did this book make me so emotional 

I loved this series as a kid and I'm finally rereading it as an adult for the first time. It's definitely got a couple things that haven't aged well (all/most of the books in the series so far have had some (minor?) sexism, fatphobia, and ableism), but all things considered it's not too bad. In my opinion this book holds up and I would still recommend it to anyone interested in the series, with the caveat that it's aimed at middle school kids. I'm really enjoying my rereads and getting familiar with these characters again, especially since I forgot so much of the plot specifics. This book is probably my favorite in the series, both when I was a kid and now--I really enjoyed reading it.