Originally written in 2002, Gray Dust is an allegory of creationism and evolution.The story starts in the 1920s, where Gray Dust is invented to keep people from seeing colors at all. The colors represent evolution, with the gray representing creationist thought.It then shifts to modern times, where Julie, a young woman, struggles with her beliefs as she tries to figure out what she truly believes. She seeks to maintain her morality even if she loses her faith as she learns about Gray Dust.