CITY OF EMBER, THE 3 : The Diamond of Darkhold - Random House - Yearling

A solid and satisfying conclusion. - School Library Journal Several months have passed since Lina and Doon escaped the dying city of Ember and, along with the rest of their people, joined the town of Sparks. It's in the midst of their first hard winter that Doon finds a book with torn pages, eerily similar to the Instructions for Egress. It alludes to a mysterious device from before the Disaster, a piece of technology they were meant to have and that may be waiting for them underground. It doesn't take much for Doon to convince a homesick Lina to join him for one last adventure in Ember. But what