Tris and Four are left fending for themselves and hiding from the Dauntless and Erudite traitors. They must work together and with everyone lese in order to solve everything. However, doing this may be harder than they thought because the traitors have found a way to defeat everybody, possibly even the Divergent.
Lina and Doon live in the City of Ember. They know that the city is running low on resources and that all light will eventually burn out. Lina and Doon go on an adventure and figure out how to fix everything. The only problem is that no one will listen to them. Will Lina and Doon end up saving their city before it is too late?