Demon Days

The Demon Days are the last five days in a year and are considered bad luck in Ancient Egypt. People did not take risks or do anything dangerous on these days. In addition, it is impossible to create portals on these days, forcing magicians to travel by other means.

The Demon Days were created when during the Age of the Gods, when a year was originally three-hundred and sixty days long. However, when Ra heard a prophecy saying that a child of Nut and Geb would overthrow him, he forbade the two to have any children on the three-hundred and sixty days of the year. Desperate, Nut gambled with the moon god, Khons, and won moonlight from him, using it to create five more days. She gave birth to one child each day, resulting in Osiris on December 27th, Horus on the 28th, Set on the 29th, Isis on the 30th, and lastly Nephthys on the 31st. In punishment, Ra forced Geb and Nut apart for all eternity.

Although the Demon Days are considered bad luck by mortals, the gods born on these days are especially powerful on their birthdays. In modern times, Set attempted to turn North America into a desert on his birthday, the height of his powers.