Scrambled Grey Matter

At first, Tirth Chew-Ogi enjoyed life on Earth after all the humans died in the solar flares-apart from the stench from their rotting corpses, of course. As the weeks drag by, loneliness grabs hold of her, though. She doesn't ask for much, a couple of active, or at least fresh enough, brains to keep her company would be enough. But where to find them?