City+of+Ember-+Jeannie+DuPrau

For generations, the people of the City of Ember have flourished in an amazing world of glittering lights. But Ember's once powerful generator is failing ... and the great lamps that illuminate the city are starting to flicker. The City of Ember is the only light in the dark world. Beyond Ember, the darkness goes on forever in all directions. When the children of the city of Ember finish school, they begin work at 12 years of age. . . . Lina Mayfleet desperately wants to be a messenger. Messengers spend their days outside, running from one corner of the city to the other. Instead, she draws the dreaded job of Pipeworks laborer, which means she’ll be stuck in tunnels deep underground.

Doon Harrow draws messenger—and asks to trade with Lina! Doon wants to be underground. That’s where the generator is, and Doon has ideas about how to fix it. For as long as anyone can remember, the great lights of Ember have kept the endless darkness that surrounds the city at bay. But now the lights are starting to flicker.

When Lina finds fragments of an ancient parchment, she and Doon put the pieces together to discover a message that seems to be directions out of the city.

Check out the City of Ember game- []