I’ve read a few of the other Time Warp Trio books both as a dad and a teacher. These are great books that move quickly and keep readers entranced. The history tie-in is always a plus for me, as well. I like how these are often a draw for students to learn more about historical events or, at least, give some connection for history lessons. ( )

After reading and loving Sam Samurai (another book in the series) I was kind of disappointed in this one. I believe this book is meant to be the last in the series and is spends a lot of time retelling and recaping previous adventures before it sets into the current one of meeting da Vinci (who created "the book"?) and then helping him outwit an evil Italian Army Captain? The book seems a little out of touch with the Renaissance whereas Sam Samurai felt better connected to Japan. ( )