The mystery has no solution around the book

The Devil's Book, the largest medieval manuscript manuscript, is famous for the vivid Satanic image in the middle of the book.

Although the name means " Giant Book" in Latin, Codex Gigas is more commonly known as the "Devil's Book" , according to News.com.au. This leather-bound book, born in the 13th century, is the largest manuscript surviving from the Middle Ages, kept in the vault of the Swedish National Library.

At 89cm long and 49cm wide, the book is about the size of a small child and requires two people carrying 75kg of weight. Inside the pages of the book are the complete version of the Vulgate Bible , which is later considered the official Latin translation of the Catholic Church.

The secret of the birth of the book has become a topic that attracts public interest for hundreds of years. According to legend, the book is the work of a monk at the Benedictine monastery in the Czech Republic. This monk was condemned to live his life behind the walls for breaking the vows of spiritual practice. While panicking and desperate before the sentence, he devised a way to help himself escape death.

Satan demon drawing on the book.(Photo: ABC News).

The monk suggested writing a book that not only made the monastery glorious but also contained all human knowledge within a single night. His offer was accepted by the jury. That night, when the midnight moment approached, the monk realized he was unable to complete the book.

He crouched down and knelt down to beg. But instead of praying to God, the monk turned his gaze downwards and offered the fallen angel Lucifer to help Satan help with the agreement to exchange his soul to complete the book. Satan heard the monk's request and agreed to help him.

The monk added a full portrait of Satan to the book to express his gratitude. Another version says that Satan left behind his own portrait on the book. Devil portrait with color ink located on page 577 of the book. The presence of a drawing loses the look and feel of the book's content.

The Devil's Bible is a medieval encyclopedia of encyclopedia , containing instructional materials about medicine and magic. In the book there are two mantras that specifically guide how to identify and arrest thieves, along with instructions on how to ward off demons or ghosts in objects and people. In the Middle Ages, many diseases were thought to be possessed by demons and the church always had special rituals to push evil spirits out of the human body.

The book also includes many alphabets as well as the complete version of the Old Testament and the New Testament . The test results show that the manuscript is written by a person. However, the book author's identity is still a big mystery.