Time travelers are all around us.  Getting ahold of a time twister, Alex, Jonathan, and Zoe leave earth and start the search for a planet they could live on.  Lots happen before that and Jonathan isn't going to be happy how he traveled.  It is opened ended.  Did they find the planet?  Did they return home? 

Alex's asides are a hoot. I loved how he starts the journal.  I laughed out loud.  I find it a hoot.  Alex and Jonathan are a riot.  Just like some of the kids I know that age.  I hope there is a book 4 so I know the answers to my questions.

Alex improves his Star Jumper and it is bigger and better than ever.  But he knows he still has a few more inventions to make to ensure success as he goes into space, hopefully with Zoe as his co-pilot.  He needs an anti-gravity belt so the gravity differences between planets can be handled by his body.  He also needs a way to restrict Jonathan's spying and getting in the way. 

I love this series.  Alex's asides and explanations as he tells the story have me laughing out loud.  He is a riot.  The drawings that illustrate what he means are great.  Alex and Jonathan are so realistic.  I cannot wait to read book 3.  This is so much fun!