: Prinn allegedly wrote the manuscript while imprisoned for witchcraft in Brussels; it was published in Cologne in 1542, shortly after he was burned at the stake. Thematic Content
The book first appeared in Robert Bloch’s 1935 short story, The Shambler from the Stars . According to Mythos lore, it was authored by , a Flemish sorcerer, alchemist, and necromancer who claimed to have survived for centuries by occult means. des vermis mysteriis
In 1935, Bloch wrote a story titled "The Shambler from the Stars." In it, a character (modeled after Lovecraft) reads from a forbidden book and summons a monstrous invisible entity. As a tribute to his mentor, Bloch invented a grimoire to rival Lovecraft’s famous creations. Lovecraft was so delighted by the invention that he immediately incorporated it into his own writings, referencing the book in stories like The Diary of Alonzo Typer and The Haunter of the Dark . : Prinn allegedly wrote the manuscript while imprisoned