I'm kind of mad that this book is brand new because I'd like to read the sequel right now, please.
Boo and Mimi are really interesting and nuanced characters in a book with a bubble gum sweetness to its illustration style. I deeply hope that in the next book Boo gets the courage to ask the people who love her for help and tell them why. Her mom bursting into the cafe on the last page might do that for her, though.
Reading this after reading K. Ancrum's The Wicker King made me initially dubious of Boo's imagination. At this point, I don't know if that's a fantasy element of the book, or if it's also something she should be seeking help for.