|De Vermis Mysteriis|
Season of the Witch
House of Fears
|Action: Test Intellect +1.|
Pass: Take 1 horror, discard this card, and gain a "Soul Pact" Spell card.
Fail: Nothing happens.
|De Vermis Mysteriis|
The profane knowledge held within these pages promises power, but at a terrible cost.
|Streets of Arkham|
|EE-173: De Vermis Mysteriis [R]|
Von Prinn's Grimoire
The worms held no more mysteries for Vaughn.
|Action: exhaust and pay 2 to choose two domains controlled by the same player. Move one resource from one of those domains to the other.|
|TKatG-26: De Vermis Mysteriis [F]|
Signs of the Black Stars
|Each character gets −1 skill for each success token on De Vermis Mysteriis.|
Action: Exhaust De Vermis Mysteriis to discard a card from the top of your deck. If that card is a non-character card, add a success token to De Vermis Mysteriis.
De Vermis Mysteriis is an Exploration Card that appears in the Mansions of Madness First Edition Core Set, Season of the Witch, and House of Fears, a Unique Item Card that appears in the Mansions of Madness Second Edition Streets of Arkham, and a Support Card that appears in the Call of Cthulhu: The Card Game Eldritch Edition and The Key and the Gate.
The De Vermis Mysteriis first appeared in the story The Shambler from the Stars (Robert Bloch, 1935).
The De Vermis Mysteriis is a book written by Ludwig Prinn circa 1542. Just before the author's death at the hands of the Inquisition, unknown individuals smuggled this volume out of his cell. One year after its author's death, a Latin edition of De Vermis Mysteriis was published in Cologne. This is considered the sole reliable printing of this manuscript. When the Church found out about the book, they considered it to be so dangerous that Pope Pius V banned it in 1569.
De Vermis Mysteriis is divided into sixteen chapters, each dealing with a different topic such as divination, familiars, necromancy, elementals, and vampires. The most famous chapter deals with the rituals of the Saracens, from whom Prinn had learned during his imprisonment after the Crusades (see Saracenic Rituals). This book includes spells to call down invisible monsters from the skies, along with tales of Byatis and the worm-wizards of Irem, the true nature of the Egyptian crocodile-god Sebek, the formula of the drug known as Liao, and a series of operations intended to speed the transformation of a human-deep one hybrid.
Notes and references
- Harms, Daniel, "De Vermis Mysteriis", Cthulhu Mythos Encyclopedia.