I discovered and read this series a few years ago, and now I am reading it with my nine-year-old son who absolutely loves it as well!  I recommend this series to readers of all ages.  The book has a historical / fantasy feel, but is really timeless, and is filled with excitement, action, and adventure.  I highly recommend this book, especially to reluctant readers.  I have a feeling they'd find something in this series to love too!