I wanted to read this book because, I like time travel and thats what this book is about. One of the most exciting part was when I found out that one of Tychos brothers had gotten so fat he looked like a blob of jello in his room on the moon. The other exciting event was when tamara got to dance on the moon. I would recomend this to people to anyone who likes to read about an adventures their age. However if you get attached to characters easly I do not recomed this book.