The 7 Most Eerie Books and Grimoires Of All Time

The Voynich Manuscript

Widely considered to be one of the most mysterious manuscripts in the history of Time As Perceived By Mankind, this book contains a ciphered unknown alphabet written on vellum (calfskin) and depicts bizarre plants, original astronomical charts, and odd interconnected bathtubs with tiny naked people.

Cryptographers, mathematicians and linguists have been unable to decipher this book. Despite its arcane nature, scholars maintain it was written during the medieval years of 1404 and 1438. Its name comes from antique book dealer Wilfrid Voynich, who bought the book second-hand in Italy in 1912.
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The Munich Manual of Demonic Magic

Also known as The Necromancer's Manual, this grimoire is the work of a 15th century German magician who wanted to produce a sourcebook for evoking demonic spirits.

The Manual contains the three major kinds of magick found in grimoires: Illusionist, Psychological, and Divinatory. Illusionist spells are meant to fool people into seeing things like castles or armies. Psychological spells are meant to leverage emotional or political power over people. Divinatory actions are intended to extract information from the future or past.

The Munich Manual contains passages that describe sacrificing mythological creatures, but the most eerie component of this book is that it completely ignores angel folklore and focuses exclusively on black magick and descriptions of classical exorcisms.
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Codex Seraphinianus

This is known as one of the strangest books of all time and a new edition has just been released. The Codex Seraphinianus is different than the other books on this list because its author, Luigi Serafini, is known and it was written in the 1970s!

The Codex Seraphinianus is similar to the Voynich in its largely unintelligible, syntax-less text and fascination with fauna and floral specimen. It also features “trucks with human heads, skeletons getting fitted for new bodies, and weird animals that don't exist.”

This book was published in the early 80s, which probably added to its pop lore - it's a book that went viral before viral was even a thing.
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Heptameron (‘Seven Days')

This grimoire was originally modeled to imitate the Decameron. The author, Pietro d'Abano, who died in prison during the Inquisition, believed in something called planetary magic, by which one could conjure angels for the seven days of the week.

I can't help but imagine a man accused of atheism wasting away in prison, trying to summon strength from cosmic forces we didn't even yet know existed. (Source | Photo)

The Picatrix/The Aim of the Sage

The largest grimoire in history is also the quintessential tome of 11th century Arabic magic. It contains spells that explain "how to poison by sleep, gaze, or work" as well as acquiring the love of another, escaping from prison, and healing a scorpion's sting.

It also describes "confections" composed of blood, brains and urine. (Source | Photo)

The Oera Linda Book

This Old Frisian book purports to contain wisdom dating back 4,000 years, including teachings from the mythical Atlantis. Unfortunately, it was a favorite among Nazi occultists and is thus tainted with epic creepiness. Some even refer to it as “Himmler's bible."
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The Red Dragon/Grand Grimoire

The Grand Grimoire, circa 1520 AD, also called the Red Dragon and the Gospel of Satan, was discovered in the tomb of Solomon in 1750 and is written in either Biblical Hebrew or Aramaic.

The 4-part book is owned by the Roman Catholic Church and is kept in the Vatican Secret Archives, where it remains unavailable to the public. How do we know it exists? The Church claims official ownership of it.

The legend of the Red Dragon is that the manuscript was based on writings by the apocryphal Honorius of Thebes, who many claimed was possessed by Satan. The book is said to contain proof of demonic evocation and occult spells as well as the process whereby newly elected popes are slowly won over by Satan's greatness.

Unsurprisingly, The Grand Grimoire is still used widely by practitioners of voodoo, especially in Haiti, where it is called Le Veritable Dragon Rouge.

Oh, the book is also rumored to be impervious to fire. (Source)