Horus

Horus, the falcon god, is the god of revenge and falcons. He is the son of Osiris and Isis.

The Red Pyramid
Carter is the host of Horus.

Horus is shown to be a little power hungry as he tries to take control of Carter. Carter however resists this until the end of the red pryamid where they become one. He eventually leaves Carter at his request.

In mythology
Horus avenged his father Osiris after he had been killed by Set. There was a great battle in the actual location of the Temple of Horus, in Thebes. Owing to his defeat of Set, Horus is seen as the embodiment of order, or Ma'at. He also represents the power and authority of the Pharoah and was believed to be hosted by the Pharoah, much like Carter hosting Horus in The Red Pyramid.

Appearance
Horus is not seen often in The Red Pyramind, owing to his being hosted by Carter. When he appears before Carter he is dressed as a warrior, with armor and a sword much like Carter's.

Personality
Horus is a bit arrogant and self-centered. He considers himself the best, to the point that when Carter informed him Serkhert was almost as annoying as he is Horus replied that no one could be better than Horus - even at being annoying. He also makes Carter wish him a happy birthday as they are trying to run away from Serkhert. Durning his seven year battle with Set he cut off Isis's head when she tried to stop him from confronting him too soon. Yet he is also brave and has a sense of duty, which balances out with his arrogance.