Billy has made a giant bubble from the liquid of a meteor. He crawls inside it and suddenly looses control over the bubble. Billy is on his way into outer space.This was a childhood favourite, so I figured it was time to reread it. It's still enjoyable, but I must admit it couldn't quite live up to my expectations. Interestingly enough in part because it was too short! There were so many possibilities for expanding the plot and adding details, but since it's a childrens book, most of these were left out.I liked Billy and the Princess and would have liked to read more about them.