Created by Thawt and revealed to the priesthood by Amon, Sacred Signs constitute a pictographic script. Similar to Egyptian hieroglyphs, each sign or glyph represents a discreet thing, action, or idea or serves to clarify another sign. Sacred Signs are carved or painted on stone, painted on papyrus, and pressed into leathery clay tablets. Those pressed into tablets are often fired, as the information they convey is intended to endure. All religious texts are written in Sacred Signs.
Learning to read and write Sacred Signs was once reserved for the clergy. Through interpretation of the signs, the priesthood leveraged the power of the temple against that of the throne. Since the rise of the Sun King, who embodies the divine power of the Solar Goddess, non-clergy are permitted to learn Sacred Signs. The temple frowns on the practice, though, and only teaches Sacred Signs to its acolytes. Temple priests are fond of saying that anyone can learn what the glyphs represent, but only one endowed with the wisdom of the Solar Goddess may correctly interpret Sacred Signs.
Characters of other classes may learn to read Sacred Signs from a sage. Non-clerics who make it known they can read Sacred Signs suffer a -1 penalty to reaction checks when dealing with any temple priest.
Sacred Signs is a written language, not a spoken one. Like any other language, learning to read and write Sacred Signs takes an added language from high intelligence.