In a dangerous, bleak and hopeless world, love between a father and son sustains them. The fire they carry has no clear purpose until we realize it is the inborn drive to keep the flame of life alive. Expecting the father to protect his son from being alone we are surprised at the end of the book when he realizes the true purpose of the journey.
The story strips away all color and beauty. In a raw setting the only warmth and color emerge from the characters themselves. Be prepared to be deeply touched by the story and properly provoked by its last paragraph.