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200 years ago, as the world was coming to an end, the lighted city of Ember was created deep within the Earth. The creators locked the instructions on how to one day return to the surface in a box, with the intention of populating the surface once it was safe. Now 200 years later, the box has been long forgotten and a young Messenger named Lina Mayfleet stumbles upon it. Growing up in a now-corrupt Ember full of ancient traditions and a failing generator, it is up to her and her new friend Doon to discover the meaning of the instructions and find a way out of the city of Ember. Based on the first book in the bestselling Books of Ember series by Jeanne DuPrau.