A Hat Full of Sky is the 2nd book in the Tiffany Aching subseries of Discworld. I really enjoyed this one, maybe slightly more than I enjoyed the first Tiffany Aching book. It had an equally good story, and I thought it was a bit funnier.
In this book, Tiffany is now eleven and she leaves her home on the chalk for the first time so she can learn how to be a proper witch. She travels to the mountains where she’ll serve as an apprentice for a witch named Miss Level, who is a bit unusual. Meanwhile, a power-hungry entity has sensed Tiffany’s power and is about to catch up with her.
The Nac Mac Feegles had some particularly funny moments in this book, and I also liked Miss Level. Tiffany is still a great and likeable character who is easy to root for. There were also some good messages in the story about being nice to people you don’t really want to be nice to, helping people you don’t really want to help, and doing the things that need to be done even if you really don’t want to do them.