Reviewed by Alex. A. (age 7)
I really liked the end of the book becuase there is an unmatched fight. There are three ninjas fighting against Kai. This is my favorite part because when kai was training, the training was realy cool. The training had moves that I really liked. There was a spin kick that awesome. There is a TV show that is based on this book. The tv show is better than the book because I like to watch the action. I still like the book because it helped me understand the tv show better.
I recomend people who like ninjas or ninjago read this book. Any age group could read this book. Adults can read this book to their kids.