Chapter One

The Instructions
When the city of Ember was just built and not yet inhabited, the Chief Builder and the Assistant Builder, both of them weary, sat down to speak of the future.

“They must not leave the city for at least two hundred years,” said the Chief Builder. “Or perhaps two hundred and twenty.”

“Is that long enough?” asked his Assistant.

“It should be. We can’t know for sure.”

“And when the time comes,” said the Assistant, “how will they know what to do?”

“We’ll provide them with instructions, of course,” the Chief Builder replied.

“But who will keep the instructions? Who can we trust to keep them safe and secret all that time?”

“The mayor of the city will keep the instructions,” said the Chief Builder. “We’ll put them in a box with a timed lock, set to open on the proper date.”

“And will we tell the mayor what’s in the box?” the Assistant asked.

“No, just that it’s information they won’t need and must not see until the box opens of its own accord.”

“So the first mayor will pass the box to the next mayor, and that one to the next, and so on down through the years, all of them keeping it secret, all that time?”

“What else can we do?” asked the Chief Builder. “Nothing about this endeavor is certain. There may be no one left in the city by then or no safe place for them to come back to.”

So the first mayor of Ember was given the box, told to guard it carefully, and solemnly sworn to secr