This is the 25th day of the Gaian year. On this day chapter 25 of the Gaiad is read, telling the story of Chapter 25 gives Carcinoma a tragic origin: she was born under Cancer's star, scarred by the gamma-ray burst of Chapter 23, her DNA broken and her epigenetic bookmarks — including the H4 lysine tri-methylation that regulated her genome — scattered like autumn leaves.