The Master's Gospel

As quoted in writings of Auteur's, the Master's Gospel was one of the texts making up the Dragon Scriptures, holy texts which served as a "bible of sorts" to cultists who worshipped Dracula.

Chapter Four, Verses One to Twenty-Three told of Dracula's journey to England onboard the Demeter, claiming that he was accompanied by a "chosen few" vampires, the "apostles" of his cult, and also that during the journey, he spoke at length with Lilith, who showed him the structure of History and also his Yssgaroth "Forefathers" trapped in their own realm beyond the Very Fabric. This ended with Lilith telling Dracula that thanks to his influence, he had become something "more" than a mere manifestation of the Yssgaroth Taint. (PROSE: )

Behind the scenes
Although "the Master" is sometimes used in Dracula-related media by Dracula's thralls to refer to him, the narrator of the text gives no sign of being Dracula himself, who is referred to as "the Prince" within the quoted extracts. This leaves the identity of this "Master" ambiguous.