Horus Lucky and Unlucky Days of papyrus Cairo 86637. Horus was occasionally shown in art as a naked boy with a finger in his mouth sitting on a lotus with his mother. In the form of a youth, Horus was referred to as "nfr ḥr.w" "Good Horus", transliterated Neferhor, Nephoros or Nopheros (reconstructed as ). The Eye of Horus is an ancient Egyptian symbol of protection and royal power from deities, in this case from Horus or Ra. The symbol is seen on images of Horus' mother, Isis, and on other deities associated with her. In the Egyptian language, the word
The Horus Heresy (novels) Heresy and "Warhammer 40,000" canons; still other non-series Horus Heresy material has been eventually incorporated into the work. A significant development was the 2012 initial release of the "Horus Heresy" miniatures wargame expansion, which repositioned the concept as a foreground element within the "Warhammer 40,000" gaming system while highlighting the importance of the Horus Heresy to Games Workshop's product lineup and the related universe. The expansion is reputedly developed in coordination with the book series, and includes new material and information about the Horus Heresy and the fictional universe; it joins the series and other works as an authoritative source