So the class (or whatever you call them) at this day care center is prepping for something called the Great ShakeOut (apparently a real thing -- I'm glad to hear that it exists), which is an Earthquake Preparedness activity. As part of that, they learn a bit about what causes earthquakes, what to do during one to say safe, and get some questions answered about the safety of others.
So you get a little bit of a narrative -- just enough to give the kids something to hang on to -- and you run it through some basic lessons that are given in a way to help the reader (or person being read to) remember and learn from them. I don't know if seismologists would use the comparison to a rumbling tummy, but how many of them write children's books? It's a comparison that'll stick.
My main -- really, only -- gripe with this is the song. There's no way to know how to sing this -- I'm sure it's best set to a familiar tune, but I have no idea what would work. I'd want to sing this to any kids I read this to/with -- and I have so little musical ability that there's no way I could even begin to guess what it should sound like. It's a great idea, and just the kind of thing that'd help cement the lessons in the mind of the target audience. But without a tune, it's just a little rhyme that isn't nearly as effective.
Sager's art does the job -- the colors are great and eye-catching. It's clearly drawn on a computer, but retains a hand-drawn feel. I can't say I was dazzled by it, but I can also say that I've seen worse. I can't imagine many children in the target audience wouldn't find the illustrations suitable and effective (but probably not in those words).
This book is such a great idea -- really. I like the concept, I think the execution is good, too. This is the kind of thing that'll implant itself in little brains and stay there for years. Parents, teachers, librarians, grandparents, and so on would really do well to pick this up and put it in front of young eyes.
Disclaimer: I received this book from the author in exchange for this post and my honest opinion.