It’s been fifty years since a sun shift wiped out nearly all mammal life across the earth. Towns and cities are abandoned relics, autonomous machines maintain roadways, and the world is slowly being reclaimed by nature. Isolated pockets of survivors keep to themselves in underground sites, hiding from the lethal sunlight by day and coming above ground at night. 10-year-old Elvie and her caretaker, Flora, a biologist, are the only two humans who...