They lifted their faces to the astonishing warmth. The sky arched over them, a pale, clear blue. Lina felt as though a lid that had been on her all her life had been lifted off. Light and air rushed though her, making a song, like the songs of Ember, only it was a song of joy. She looked at Doon and saw that he was smiling and crying at the same time, and she realized that she was, too.

There is so much darkness in Ember, Lina. It's not just outside, it's inside us, too. Everyone has some darkness inside. It's like a hungry creature. It wants and wants and wants with a terrible power. And the more you give it, the bigger and hungrier it gets.

Mrs. Murdo, walkind even more briskly to keep her spirits up, was crossing Harken Square when something fell to the pavement just in front of her with a terrific thump. How extraordinary, she thought, bending to pick it up. It was sort of a bundle. She began to untie it.

It’s for my God, the god of dogs, and snakes and dust mites and albino bears and Siamese twins, the god of stars and starships and other dimensions, the god who loves everyone and makes everything marvelous.

Lina couldn't sleep at first, thinking of the old songs and what they meant. Someone, long ago, had hoped that at least a few people would survive and had wanted them to remember her city and the treasure it held, the treasure that was most valuable of all - herself, her family, and all of the generations of people who had lived in that secret place, their purpose, though they didn't know it, to make sure that human beings did not vanish from the world, no matter what happened above.

A darkness different from Ember's, but just as frightening.

Remember the city, the city remember Where treasure is hidden under the ground The city, the city, always remember That's where the treasure will be found.