Liber HVHI, the Grimoire of the Luciferian Path, is a pioneering black magical work recording the development and ritual workings of Akhtya (Michael W. Ford) via the initiatic stream of the Adversarial Current between 2003 and published first in 2006. Liber HVHI is a Satanic-Luciferian grimoire that offers guidance towards initiation by the Infernal Rites of the Qlippoth; an extensive magical system that presents a solid and understandable way of working with the Tree of Da'ath and its branches. Presented in this 2023 fully edited, with additional, unpublished, and out-of-print texts, a literal grand grimoire of the Sitra Ahra within the Luciferian Tradition, as directed by the Magus Akhtya. Including newly included beautiful and Satanically evocative illustrations, HVHI presents the levels of the Infernal Qlippoth; the methods of filling and draining these "shells" and the Luciferian rites of Cain (as Baphomet), symbolic of the First Satanist of the ancient Hebrew texts related to the process of devouring from a symbolic approach and rituals of opening the Gates of Hell (Helan = the hidden place of Sorcerers). The roots of the Adversary as the Demonic Masculine and Feminine are explored from Hebrew and Persian sources leading to a potent initiation system of the Left Hand Path. The second half of the grimoire draws on ritualistic inversions of Avestan texts and the heresy of daeva-yasna (demon worship) geared toward self-deification, plus the forbidden path of predatory spiritualism/vampirism and extreme ritual labors. The transformation works presented take place through the "Rite of Possession" (an extensive self-initiatory inversion of the Catholic rite of exorcism), the rituals of Cain, the summons to the Lord of the Tree of Death (important as a call from the Holy Guardian Angel /Evil Genius) and path work within the Tunnels, energetic exercises such as Ahrimanic Yoga and the Tongue of Shadows or staota, calls to vampiric spirits and Tiamat and sections of the Black Order of the Dragon. Liber HVHI is a grimoire written from the shadow of ancient religious texts. The result is a powerful Luciferian ideology and ritual methodology and its implementation in daily life via initiation.