Set the Destoryer

A force of chaos and corruption, Set the Deceiver and Destroyer was exiled by his fellow gods to the endless wastes beyond their domain after his attempt to murder and usurp his brother Osiris. Set was defeated in his ambitions by Isis’ resurrection of her husband and by the power of his nephew, Horus, the Avenger of His Father.
Prevented by the Pact from escaping his exile, Set bided his time until the 20th century, when an unwitting initiate of one of the cults controlled by the Serpent People overreached and attempted to summon the dark god. Set responded to the summons and consumed the soul of his would-be master, taking his body as a vessel, which allowed him to manifest on the earthly plane. This led Horus to seek a way to do the same, investing his power in the Ankh of the Avenger and allowing the human archeologist Henry Farrow to discover it.
For years, Set warred against Horus, using his sorcery, shapeshifting abilities, and the minions of the various serpent cults he commanded. The sinister god also came up against other heroes, although his nephew remained his primary foe. Set sought to create a new dominion on Earth, one he could eventually use to storm the gates of Heliopolis itself and overthrow his fellow gods.
Horus eventually returned Set to his extra-dimensional exile, the body of his former human host carefully mummified and entombed as a seal on his banishment as Set’s influence made it otherwise indestructible. Heroes like Adrian Eldrich know the location of the hidden tomb and it is guarded by powerful warding spells designed to alert the Master Mage of any disturbance.