Description Joe and Rob encounter danger and mystery on the Botsburg Express in this twelfth adventure in the hilarious Bots chapter books series. Many years ago, scientists on Earth sent video satellites out to the end of the universe to see what was hiding in deep space. Now, years later, these satellites have begun sending their first videos back to Earth...and the stars of the show are two goofy robots. Joe and Rob's train ride takes a turn when a mystery is revealed on the Botsburg Express! With easy-to-read language and graphic novel art on almost every page, the Bots chapter books are perfect for emerging readers.