Hugh Howey 
Third Shift: Pact 

The incredible third part of Shift, the follow up to bestseller Wool.Donald has woken again. Because this time the impossible has happened. Someone has fled one of the silos. And she is still alive. Jimmy is a sixteen-year-old boy, and his home is being destroyed. A betrayal has led to one of the worst uprisings in history. Jimmy s descent into Solo is about to begin.With Jules about to meet Solo, Donald s world is about to change for one final time. Will he obey the Order? Or will he risk everything to discover the truth?