The Brotherhood of the Serpent of the Dawn (Irmandade da Serpente da Alba) was founded in Portugal in the 1990s. Its acronym, ISA, pointed to Isis, specifically her dark aspect as the secret lover of Set. Her son, Anubis, was conventionally attributed to Nephthys, her complementary aspect.

The Serpent has been Portugal’s totem since ancient times, and the ISA sought to revitalize this archetype of the Portuguese soul, which has surfaced multiple times in its collective and artistic imagination. The poet-seer Fernando Pessoa gave it Word—that is, Divinely Inspired Voice—through his book “The Path of the Serpent” (O Caminho da Serpente).

The Serpent represents the Initiate who follows the Path—or Vau, the bridge that connects the opposing banks of the River in the limbo of ambivalences, during this twilight of the Kali-Yuga. According to René Guénon, this epochal phase is defined by the magical formula of the “union of opposites.” From this point onward, the primal recesses repressed by the Old Judaeo-Christian Aeon become the key to the ascension and annihilation of dualities, through their reabsorption into the Void and the Transcendent.

Ars Diabolicum lays bare the doctrine and many of the rituals of the ISA, or the Black Isis.

Contents

Presentation

• The creed of the inverted god
• CATECHISM I
• The rite of Kephas
• CATECHISM II
• Lux-Nox
• CATECHISM III
• The rite of the Apostasy of the ego
• CATECHISM IV
• The invocation of the Arcane lineage
• CATECHISM V
• Prayer to the Holy Relic
• CATECHISM VI
• Opening of the sinister path
• CATECHISM VII
• The rite of the delight of god
• CATECHISM VIII
• The Hounsel
• CATECHISM IX

• Offering to the holy daemonium
• CATECHISM X
• Chant to the icon of flesh
• CATECHISM XI
• In the garden of Venus
• CATECHISM XII

• The ritual of the Perusta Path
• CATECHISM XIII
• Ritus Canum Domini
• CATECHISM XIV
• The mark of the beast
• CATECHISM XV
• The rite of union with the daimon
• CATECHISM XVI

• The golden mass of the devil
• CATECHISM XVII
• Adoration of the exiled king
• CATECHISM XVIII
• The rite of the bread and the rose
• CATECHISM XIX
• MISSA GNOSTICAE DAEMON QAYIN
• CATECHISM XX
• Liber vel 77 et 0
• CATECHISM XXI