This is a modern, practical grimoire which provides the meaning behind the concept of the medieval pact. Dedicated to the Spirit whose name translates, 'Fly the Light', Lucifuge is a demon associated with the shadows, the darkness and the infernal pact that grants knowledge, treasures, and power. This book serves as a journey through the waters of Acheron, towards Hades, in whose journey a coin is also given in exchange to the boatman or guide. Curiously, the Lucifuge Rofocale of the Great Grimoire (similar to the demon Scirlin of the Grimorium Verum, or also like the Unholy Guardian Daemon, among many other figures of a psycho-pomp) is offered a coin as payment; and in ancient times, libations, incense, and other offerings were offered to deities. It is said that nothing comes for nothing, and that everything comes with a price, and in this case, in the opening of a dimensional portal in the middle of the Crossroads, one will have to immolate his being in the fires of hell to rise as divinity. Self-sacrifice, effort, perseverance, struggle, transformation; and as a result you will obtain the bag full of gold from the treasure of the demonic spirits of the grimoires. Beware, gold is reflected in the process of Black Alchemy, the Luciferian Magick of Apotheosis. The theory and method of approaching the Black Magical Pact so described is carefully revealed, symbols and meaning beneath. The planetary association with Saturn and the Qliphoth is explored along with modern (derived from medieval and older) rituals and workings towards a modern Luciferian aim which is outlined in the Triad of the Morning Star. This is a work of the Infernal Pact in which the Luciferian must find the inner worth and strength to exalt and contain the light of the Black Flame, the very gift of Lucifer. Grand Grimoire of Infernal Pacts is a modern interpretation of Goetic Theurgy (self-transformation via demonic powers) from a Luciferian approach. The aim of Goetic Theurgy is to utilize spirits and primal forces to attain insight and fulfill short and long term goals. The myth of "selling your soul" to the devil is revealed to be nothing more than a fantasy created by fearful minds, the true nature of the infernal pact is to enter a covenant with powers perceived as dangerous, control them and guide them according to your will for spiritual and carnal insight and power.