Chapters 1-2

From what I have read so far, I believe that this novel is set after a nuclear holocaust. This nuclear holocaust has caused people and crops to grow with strange deformities. The people in this novel see these deformities and are determined to eradicate them so that they can maintain normality. The people call these mutations 'deviations', and they say that they are caused  by the devil. Whenever they find deformed crops or livestock they destroy or slaughter them. In the first chapter the main character, David, encounters a girl named Sophie. Sophie turns out to have six toes, to the society in which they live in this is unacceptable. Sophie's mother makes David promise never to tell anyone about Sophie. I predict the later in the book Sophie will be taken away because someone discovers she has six toes.