The City of Ember

I think that the lights are going to go out and thats why Doon wants to work in the pipes because the light thing is in there. What I think is going to happen in Ember is that the lights are going to go out and Doon is going to have to save the city. I'm glad that Lina got that job as a pipe worker and gave the job to her friend Doon so she can be a messenger so that Doon could try to save the city. I think that Doon has the potential to save the city and he also wants to get out of the city. They are trying to get clues to get out of the city.