The City of Ember: The Main Idea
Ember was a city that was built for people to live in for 200 years. The builders who built the city wrote instructions for Ember's citizens to exit the city after 200 years and secured the paper in a box. The protagonists, Lina and Doon, uncover the instructions, however, it has been torn up by Lina's younger sister, Poppy. Lina and Doon work together to figure out the missing words to discover the exit. In the meantime, Mayor Cole tells the citizens of Ember that he has found solutions to fix the generator, which has been causing severe blackouts throughout the city. The generator was only built to last 200 years, but it has already been 241 years, and the food and item storerooms are nearly empty. The people of Ember are taught that everything beyond their city is darkness (classified as the unknown regions) and there is nothing else in the world, but that is a lie.