http://en.wikipedia.org/wiki/Apep

This is the sign of the Son of Man Apophis April 13, 2029

Apep (/ˈæˌpɛp/ or /ˈɑːˌpɛp/) or Apophis (/ˈæpəfɨs/; Ancient Greek: Άποφις; also spelled Apepi or Aapep) was an evil god in ancient Egyptian religion depicted as a snake/serpent and a dragon, the deification of darkness and chaos (ı͗zft in Egyptian), and thus opponent of light and Ma'at (order/truth),