 Some scholars believe they were written by Norbert Sévestre, a prolific author of popular adventure series, many of which included similarly fantastic elements, although this has never been proven.The Sâr Dubnotal is a sorcerer and a superhero not unlike Marvel Comics' Doctor Strange.He is a learned Master of the Occult, nicknamed the "Great Psychagogue", the Napoléon of the Intangible, the Master of Psychognosis, the Conqueror of the Invisible, "El Tebib" (meaning Doctor in Arabic), or merely the Doctor.