The City of Ember is an enthralling science fiction picture book written by Jeanne DuPrau. It is set in an underground city where the only source of light is failing. The story follows two young protagonists, Lina and Doon, as they uncover the secrets of their city and search for a way to save it. With its suspenseful plot and intriguing premise, this book keeps readers on the edge of their seats. It also explores themes of resilience, friendship, and the importance of knowledge. The City of Ember is a captivating read for science fiction enthusiasts of all ages.