Unraveling

Like The Forest of Hands and Teeth, Elizabeth Norris's Unraveling blends realistic coming-of-age issues with a gripping science fiction world. Unraveling's heroine, sixteen-year-old Janelle Tenner, is used to having a lot of responsibility. She balances working as a lifeguard in San Diego with an intense academic schedule. Janelle's mother is bipolar, and her dad is a workaholic FBI agent, which means Janelle also has to look out for her younger brother, Jared.
And that was before she died.and is brought back to life by Ben Michaels, a mysterious, alluring loner from her high school. When she discovers a strange clock that seems to be counting down to the earth's destruction, Janelle learns she has twenty-four days to figure out how to stop the clock and save the planet.