Wow...this was a book like no other. The premise is attention-grabbing--an asteroid is heading toward earth and there are only 4 days before impact. The main character is a girl who loves probability and in her 4 days she decides to make a time capsule to remember all of the things that were loved by her friends and family. Kids would love this book if that's all it was but... SPOILER ALERT... it's not really what this book is about. I'm not going to say what's really going on, but I will say that it has to do with racism and gun violence and grief and family and friendship and love...and math. There is a LOT to talk about here and I think the ending is going to be controversial for the kids who read this book expecting something else. All this to say, this book is going to have people talking and kids reading, and that's a great thing.