The city of Ember was built as a last refuge for the human race. Now, 200 years later, the great lamps that light the city are beginning to flicker. When Lina finds part of an ancient message, she's sure it holds a secret that will save the city.

The People of Sparks picks up where The City of Ember leaves off. Lina and Doon have emerged from the underground city to the exciting new world above, and it isn't long before they are followed by the other inhabitants of Ember. The Emberites soon come across a town where they are welcomed, fed, and given places to sleep. But the town's resources are limited and it isn't long before resentment be ...