Ahhhh. This is my sigh of utter satisfaction on finishing the fourth and final book in the City of Ember series, The Diamond of Darkhold. Jeanne DuPrau, thank you! Thank you for giving us another interesting story, and one that so pleasingly completes the series.
Fans of the series will not need to hear more. The Diamond of Darkhold is scheduled for publication today. Don't even think about missing it!