‘The Book Of Soyga’ Is A Manuscript About Magic Of Unknown Origin
The Book of Soyga, also known as Aldaraia, is a book about magic. It is written in Latin and talks of demons, astrology, spells, and angels. Scholar John Dee, who was an advisor to Queen Elizabeth I, had a copy of the book in the 16th century, but it was lost after his passing. However, two copies of the book were found later: one in the British Library and the other in the Bodleian Library.
Dee was unable to figure out several tables contained in the book, and once attempted to talk to angels for help figuring the book out via Edward Kelley, a medium who purported to channel them.
http://www.esotericarchives.com/soyga/Book_of_Soyga_8x10.pdf