Book 20

In the book  The City of Ember describes this story in a fun way.  Lina’s friend Doon goes into the pipeworks and finds the stone marked “E”, then the day tells Lina.  The problem is that after they find the way out of Ember they tell the mayor’s guards something, and the next day they are said to be spreading “vicious rumors.”  Both Doon and Lina try to solve the problem by hiding in the school house but, thy know they can’t stay there forever so they decide to write Clary a message. When Lina goes to deliver the note to clary she gets caught.  In the end Doon and Lina have a bigger adventure ahead of them.