The city of Ember is a fictional underground city. It was built to preserve human life after a huge disaster. Where everyone in the town dread the thought of the lights going out and never coming back on.
The sky is always dark in Ember. The only lights are attached to the buildings, and they're turned off between 9 pm and 6 am.
the kids gradute from school when they are only 12 years old,on he day of graduating they are given randiom jobs whih they are stuck with for the next 3 years,after that they can request for new carrer.