BotW: The City of Ember

The City of Ember by Jeanne DuPrau opens with a mystery. The beginning chapter entitled "The Instructions" discusses a city built by some mysterious engineers and a set of secret instructions that they locked in a safe and entrusted with the city mayor to keep safe for more than 200 years. Generations of mayors passed the safe to their replacements. All but one. And so the safe, and the instructions inside it, were lost.

The very next chapter focuses on the book's protangonist, Lina Mayfleet. It's job assignment day for the City of Ember and Lina hopes she gets messenger. Instead, she is horrified when she gets Pipeworks, an engineering job working underground Ember maintaining the cities plumbing system.

Why does Lina hate the job of Pipeworks so much? More importantly, why does a fellow student, Doon Harrow, volunteer to switch jobs with her? Check out The City of Ember and find out!