http://en.wikipedia.org/wiki/Earth_Abides
Earth Abides
Earth Abides is a 1949 post-apocalyptic science fiction novel by American writer George R. Stewart. It tells the story of the fall of civilization from deadly disease and its rebirth. Beginning in the United States in the 1940s, it deals with Isherwood "Ish" Williams, Emma, and the community they founded. The survivors live off the remains of the old world, while learning to adapt to the new. Along the way they are forced to make tough decisions and choose what kind of civilization they will rebuild.
"Part I: World Without End"
While working on his graduate studies in biology in the mountains, Ish is bitten by a rattlesnake. As he heals from the bite, he gets sick with a disease that looks like measles. He recovers and makes his way back to civilization, only to discover that most people died from the same disease. He goes to his home in Berkeley. As he travels, he observes the world in the light of ecology, watching it adapt to the loss of humans. In the city near his home Ish meets few human survivors — a man drinking himself to death, a couple who seem to have lost their sanity, and a teenage girl who flees from him as someone dangerous. He comes across a dog, friendly and eager to join him. The dog, now named Princess, swiftly adopts Ish as her new master and sticks by him for much of the book. Wondering if his observations are typical of humanity in general, he sets out on a cross country tour, traveling all the way to New York City and back, scavenging for food and fuel. As he travels, he finds small pockets of survivors, but he doubts that they will survive the loss of civilization.
He returns to his home in California, and finds a woman, Emma (Em), living nearby. They agree to consider themselves married and have children. They are joined by other survivors. Over time the electricity fails and the comforts of civilization recede. As the children grow, Ish tries to instill basic academics, teaching reading, arithmetic and geography.
"Quick Years"
During this period of time, Ish and Em meet many other people such as Ezra, George, and many others. This section goes all the way to the end of Year 21. The community, within this time period, started to call the years by events that happened in the Year. Many children were born in these years and within them was Joey, Ish's favorite son. Joey is Ish's favorite son because not only is Joey very similar to Ish, but Ish believes that Joey is the key to the future.
"Part II: The Year 22"
Chapters 1-5
Twenty-two years later, the community flourishes. The younger generation adapts easily to the more primitive world. They come to have a better grasp of the natural world than the adults, and when running water fails, the younger generation comes to the rescue, knowing where flowing streams may be found. The children see no need for structured academics and Ish isn't a natural teacher. Only one child, his son Joey, seems to be able to grasp and use academic skills. Ish increasingly sees Joey as the future leader and brains of the community.
Ish turns his attention from ecology to his newly forming society. One thing that he notices is that the children are becoming very superstitious. One day Ish asks for his hammer, an antique miner's tool found in the mountains, which he habitually carries around, and finds the children are afraid to touch it. It is a symbol for them of the old times. The long-dead Americans are now like gods—and Ish is too.