Thick Black Night

High-altitude EMPs. Alien rescue and a runaway girl with a knack for survival.
After surviving on her own for three years as a runaway, 16-year-old Kaitlin has 'all-the-right-stuff' when the power-grid goes down.
Now-with society falling apart and outlaws controlling the roads-her survival instincts tell her to hunker down, but the older couple who were giving her a ride is worried for their family ... they want to go home.
And Kaitlin can't abandon them without betraying her code of honor.
But when they're ambushed and captured by slavers, Kaitlin doesn't see any way out.
Then the alien girl shows up. She has a job for Kaitlin ... and of course it's dangerous.