Once there was this boy who really wanted to be a engineer so every day he tried to fix his bike. When he couldn't fix his bike his bike he would ask his dad because his dad is a engineer and has retired. It's very funny how he does it, he just clicks his finger and Powwow ! He's done . One day when he was putting my bike together he made a... ROCKET ! So I asked where we are going he said happily " to mars " So I jumped in the rocket, already he had packed every thing and I said "... my ultimate challenge... " So we went to mars and came back. It was fun.