Grimoire of Mammon

The Grimoire of Mammon is an artifact retrieved by the Harlowe Traveling Adventure Brokerage during the course of their third adventure. Originally, the group was contracted by Thibault de Luxe to acquire and return this book from a barbaric church south of High Ostberg on the pretense that it had been stolen from a caravan by Khushakh raiders. In reality, as the party discovered after translating Barbaroi's Cipher, this was merely a ruse: Thibault had actually traded the book to Father Barbaroi, a figure in the shadowy Cult of Mammon in exchange for that group quietly assassinating the party; Thibault felt this was necessary because he was worried about his superiors in the Elder Consortium finding out that the contents of the mysterious Research Division D letter had been compromised.

The book is written in Abyssal and a translation revealed that it contained a number of rituals related to the worship of the evil god Mammon, including techniques for summoning and interrogating devils, trapping the spirits of lesser devils within artifacts such as necklaces or rings, creating doppelgangers through the use of blood magic, transferring souls between physical vessels, and a host of other profane acts. It also contains notes on the metaphysical nature of Mammon, suggesting that he is an elder god who "feeds upon faith and falsehood", growing stronger by devouring the prayers of those faithful to false gods or gods whose rituals have been corrupted and altered in subtle ways by Mammon's priests.

Unfortunately, a full translation of the text is impossible, as many of the internal pages were destroyed when Brecca Sylen, against the niggardly protests of Phillipe Marienburg, destroyed many of the internal pages with holy water, in the assumption that the book was the phylactery of the lich Barbaroi.