The Grimoire of Honorius was described by A.E. Waite as "perhaps the most frankly diabolical of the Rituals connected with Black Magic". In deals directly with the most hated and feared of demons found within Judeo-Christian traditions, such as Lucifer and Astaroth. In addition, its reputation was built up by famed Nineteenth Century French occultist Eliphas Levi, who described it as horrible, wicked, and profane. Honorius amalgamates elements from other grimoires, such as the Key of Solomon and the Grimorium Verum, with Catholic priestly ritual. The result is truly bizarre.