The Prophet of Yonwood

This book managed to make the first two books seem completely pointless. The first books in this series were great and fun stories but this story makes you realize there was a very stupid reason for the first two books to even have happened.

SPOILER

Basically the author couldn't figure out a way to explain how the city ended up being kept away from the outside world. She attempts to explain it by making some prophet tell everyone to make a city underground. The town goes along with the crazy prophet and BOOM. The city of ember is born.

The author shouldn't have written this prequel and instead let the readers wonder about how the city came to be.