Gamma Bolt
The setting is future earth. Blasts of gamma rays have begun striking the earth’s surface randomly. When they do, everything living in their path dies. Unable to ascertain where these are coming from, or more importantly, when and where they’ll strike next, the governments build hardened shelters and move everyone into them. The heroine is a young adult woman. She’s a loner and a bit aloof. She journeys with a family outside the bunkers. The heroine is a bit of a law-breaker, a smuggler of sorts willing to take people or things outside the approved government travel zones and times. Society has become very locked down in response to the threat of the gamma rays. The family has to travel somewhere for some reason, TBD.
If you can’t tell yet, the gamma rays are a stand in for terrorism. The story is about how government oversteps its bounds to protect citizens in response to a threat and we lose privacy and freedom in the name of security.
At some point in the story, they nearly are hit by a blast. The son of the family, a young adult man almost the age of the heroine (and who obviously has a crush on her) helps save his sister and everyone else by throwing them into a cave but is hit by the blast. This act of selfless heroism brings our heroine out of her shell and helps her realize the value of sacrifices to help others.
Basically the story goes that her vehicle crashes and they are picked up by the government near NORAD. By chance they learn about a project called Zeus which is a complex satellite system. At first they suspect it creates the blasts, but they learn it actually tracks and predicts them. The government doesn’t let people back out, even though they could vacate areas with enough warning, because they feel it would be too risky. That, and the government is used to the total control it has now over where people are, what they’re doing. It seems beneficial: more of the earth’s surface has returned to nature, crime and terrorism are down, and people are united in fear of the rays. The government confiscates any devices she or the family has and lets them go. The little girl in the family though has a pendant from her brother that recorded the conversations in NORAD which can be used to overthrow the government’s secret.