Madrigorian
From Mistipedia
The Madrigorian is a multi-volume work by the fiend Drigor. It was penned over the course of decades through the possession of members of the Madrigore family in the village of Edrigan in Dementlieu. The work is a philosophy of right from an outsider's perspective and in particular that of the creature.
References
[VRG to Demons]