City of Ember
by Jeanne DuPrau
In the underground city of Ember, young Lina and Doon race against time to find a way out before the lights go out forever. This exciting adventure follows two kids who must solve an ancient mystery to save their people.
5th GradeSeries
About Jeanne DuPrau
Jeanne DuPrau is an American author, best known for The Books of Ember, a series of science fiction novels for young people. She lives in Menlo Park, California.
via WikipediaISBN: 9780375822742