At first, she focuses frantically on finding a way out, until the harrowing truth of her new existence settles in—the crushing loneliness, the terrifying madness of a captor who believes he is saving her from the end of the world, and the persistent temptation to give up. But nothing prepares Blythe for the burden of raising a child in confinement. Deter­mined to give the boy everything she has lost, she pushes aside the truth about a world he may never see for a myth that just might give mean­ing to their lives below ground. Years later, their lives are ambushed by an event at once promis­ing and devastating. As Blythe’s dream of going home hangs in the balance, she faces the ultimate choice—between survival and freedom.