The Prophet of Yonwood is an apocalyptic science fiction novel by Jeanne DuPrau that was published in 2006. It is the third "Book of Ember" of the series, and a prequel to The City of Ember. It is set about fifty years before the Disaster and the establishment of Ember, and approximately three hundred years before the events of The City of Ember, The People of Sparks and The Diamond of Darkhold.

The City of Ember is a post-apocalyptic novel by Jeanne DuPrau that was published in 2003. The story is about Ember, a post-apocalyptic underground city threatened by aging infrastructure and corruption. The young protagonists, Lina Mayfleet and Doon Harrow, follow clues left behind by the original builders of the City of Ember, to safety in the outside world.