Now obsolete name for the twelfth house, which was held to be the main base for evil in the chart (esp. the Solar Chart).

Sometimes depicted as a flaming serpent, the Cacodæmon was a malevolent shape-shifting demon, as opposed to the Agathodæmon, a loving spirit or guardian dragon, the divine logos. On the The Demotic Magical Papyrus of London and Leiden, the incantation includes "Agathodæmon, the almighty four-faced dæmon, the highest darkling and soul-bearing Phox". Also the evil dæmon, the expression of malevolence and unhappiness; as opposed to the eudæmon, the guardian spirit or genius that brings the happy state of flourishing, eudæmonia, recommended by Aristotle. The dæmons, good or bad, were held by the Greeks to be living beings of intermediate stature, occupying rungs between the divine gods and mortal men. See Dæmon.

The constellation Perseus the Champion, with particular reference to Caput Algol, the demon's head, which he held, having severed it from the body of Medusa the Gorgon as a part of his rescue bid for the lovely Andromeda.

On another level, the personal Kakodæmon is born from the rejected potentials and energies of an individual's soul. This "Evil Dæmon" can be made an ally through increased consciousness and has energy that may be harnessed to work for one's higher purposes. It holds great power, which may be reclaimed, for by reclaiming the lost parts of our souls, we become more complete.

"For many centuries Western culture has rejected and denied the Evil Daimôn, both individual and collective (for the collective consciousness of a culture, nation, or religion also creates its Kakos Daimôn); this is the reason these destructive powers are rampaging ungoverned around our world. They cannot be banished; the only solution is a cooperative alliance in conformity with modern society and ethics." – John Opsopaus