Love love loved this book. I've only read a couple multiverse books and this one was so amazing. The characters were so brilliant and the underlying messages of classism and privilege were as well-written as the action- and drama-packed sci-fi plot. My only problem is that the story at times felt a little scattered? Like it felt like there were multiple endings and it wasn't fully cohesive? But that's very nitpicky, overall this book was so good!