Ma'at

Ma'at, is order and harmony as well as the creative power of the universe. Magicians often tattoo a hieroglyph of Ma'at on their tongues to help them speak spells clearly; Ma'at is represented by numerous things, including sphinxes. The opposite of Ma'at is Isfet, Chaos.

Magicians of the House of Life seek to uphold Ma'at. In ancient times, this was done by serving the pharaoh, but with the fall of Egypt, they have now turned to banishing the gods to the Duat in an attempt to keep balance. Ma'at hinges upon the order of creation, including one's loyalty to the rightful king.

Ma'at is shown as a girl.

In Mythology
In mythology she is portrayed as a goddess as well as a principle, but it is unclear if this is the case within the books, which thus far has presented her as an intangible concept. She is responsible for the weighing of the heart in the Duat's Hall of Judgment. She's also one of the wives of Thoth. Ma'at is usually depicted as a young woman with the Feather of Truth in her hair and often has wings.

The Red Pyramid
In the First Nome Zia puts a tattoo of Ma'at on Carter and Sadie's tongue. Sadie remarks that it tastes terrible.

The Serpent's Shadow
Sadie Kane is able to summon the power of Ma'at in The Serpent's Shadow, which Isis, in response, deems amazing, saying that the last time someone managed to summon the power, the person was wearing a fake beard, as it was a female pretending to be a male. Through this, Sadie manages to view everyone in their Ma'at forms, in particular, Walt, who was wrapped up in linen, and making her realise he was already marked for death, scaring her greatly. Though weakened through the summoning, they manage to defeat Apophis' minions in the mueseum, and escape.