Chapter Summaries 16-20

Chapter 16 :

In this chapter, Lina is being chased down by two guards. They chase for a good twenty to thirty minutes, and then the guards finally catch Lina. She's escorted to the Mayors' office. During their conversation, a blackout takes action. Lina takes this as a sign, and takes off running. She makes it to the roof, and then sets another plan into action. 

Chapter 17 :

Doon decided to leave Lina, even if she was going to meet him by the Pipeworks. Lina and him meet there, and use the Instructions to leave Ember. Doon and Lina use their candles and matches, so they could see down the tunnel. The tunnel leads into more tunnels, eventually to 351. Tunnel 351 is where the "E" is. 

Chapter 18 :

The boat launched into the water, and was being thrusted and thrown around by the heavy current. Eventually, it gets as bad as where Poppy might hit her head on one of the metal benches. They were all screaming and yelling, and then the river calmed down. It calmed down to a point where Lina and Doon could sit up. Then, the boat slows to a stop and they find a path.

Chapter 19 :

The two children and Poppy have to walk for seven hours. The Builders had put a sign, so they'd know they were going the right direction. The walk took a while, according to Lina. They were all hungry. Then, after the walk, they saw the light. It was the outside world, actually. Ember was underground, and the Pipeworks were the underground of the underground.

Chapter 20 :

This chapter brings us to where they read the journals from the woman. It says she was given a child, and that there was a bus. The bus would take them somewhere. The windows were boarded shut, so they couldn't see where they were going. Her and another man were assigned to raise this baby, and start a colony. After the story, it goes back to Lina and Doon. They see a fox, but of course... They have no clue what a fox is! Doon wrote a message to Ember, tied it to a rock with the Instructions, and threw it down with a piece of his shirt. It landed in front of Mrs. Murdo,  and from then it continues into the next Book of Ember.