More than six months after the eruption of the Yellowstone supervolcano, Alex and Darla retrace their steps to Iowa hoping to find Alex's parents and bring them to the tenuous safety of Illinois, but the journey is ever more perilous as the remaining communities fight to the death for food and power.

"Two years after the disappearance of her father, seventeen-year-old Liv and her friend capture an alien in the Iowa countryside, and instead of turning him over to the authorities, they choose a different path." -- Iowa. Two years ago Liv Fleming's father claimed he had been abducted by aliens-- and shortly after disappeared. Liv has accepted that he's dead, but every Sunday she and her friend Doug Monk continue to check the "alien traps" her father...

Lily is moving into her grandmother's farm in Iowa, and she is sad about all the changes necessary in her life--but on the long drive her grandmother challenges her to find ten beautiful things that they can share together.

In 1963, when twins Henry and Helen and their best friends, Alan and Nicki, try to find Alan's missing brother, Carl, they stumble into the knowledge of their "subtle forms" that can separate from their physical bodies, and into a criminal's plot to make himself immortal--at any expense.

After being involved in a drunk driving accident in the spring, Paige Sheridan spends the summer in Paris as an au-pair and then returns to her suburban Iowa existence for her senior year of high school, where she begins to wonder if she wants more out life than being popular, having a handsome boyfriend and all the latest clothes, and being a member of the social elite.