"It's gone, it's gone! The pupa is empty, it's gone, see? Nothing's left inside the pupa!" Bobby kept pouncing on the chrysalis that has fallen to the ground to prove to Rio that the chrysalis was really empty. In this book, children will learn about the changes of a creepy crawling bug into one of a beautiful creature. Children will also learn new words with the glossary which is available in bilingual in this book. This informative book is suitable for children in ages range between 10 to 12 years old. This book can also be used as an additional reading material for English Literature in school.