Wonderful book! After reading my "kids'" summer reading books I was incredibly disappointed...what were these teachers thinking??? Thank goodness for City of Ember, which restored my faith in current children's literature! Reminiscent of sci-fi classics such as Ender's Game, but with a more modern, relevant twist. The people of the City of Ember live underground (although are unaware of this) and the first "pioneers" were brought there approximately 240 years ago. The original Builders of the city expected the city only to last 220 years, and outfitted it as such. Storage rooms full of light bulbs (the only source of light), canned foods, and the other comforts of life are consequentially running out - as is the generator that provides power to their light bulbs. Doon and Lina, two 12-year-olds who recently ended their schooling and began their lifetime jobs, become the rebels in the Ember community. Doon has felt the deterioration of Ember for quite a while and uses his job as a Pipeworks repairman to try to solve the secret of the generator. Lina has discovered a box that has been passed down through her family for generations - the Builders placed a note in it that details the escape plan for citizens of Ember. Using the note Lina found (which her sister Poppy managed to rip to shreds) and Doon's access to the Pipeworks, the two do what the adults in Ember have failed to imagine - look for an escape from their own city.