"After being warped back to France in 1815, Joe, Fred, and Samantha are faced with a huge challenge--make certain Napoleon loses the Battle of Waterloo. But there's one problem: Napoleon has stolen The Book and figured out how to change history. Join the trio as they try to get The Book back from the cranky emperor, fix the battle, and fly in one of the very first hot air balloons"--P. [4] of cover.