Jo is a girl. She lives in Hilltown. She likes adventure stories but she doesn´t like science books. One day she sees a flying saucer but Mrs. West explains to her that it is a comet. Then the teacher shows her a telescope and science books. When she explains these interesting things to Jo she likes them. After that Jo likes science books. The book is very interesting and funny. The best part is when Jo looks at the sky through the telescope and finds stars.