City of Ember Series by Jeanne DuPrau

For fans of The Giver or The Hunger Games, here’s a must-read. These novels take readers on a journey deep underground to the City of Ember where residents are dependent upon everyone else for things we take for granted, such as light. The characters must rush to find their way out of Ember before it goes completely dark, and thankfully our strong female protagonist, Lina, is there to guide the older, less adventurous adults to their new life.