The Book of Soyga (Aldaraia sive Soyga vocor)

Documented history: The work known as The Book of Soyga (also presented in the manuscripts under the Latin title Aldaraia sive Soyga vocor) is a 16th‑century Latin treatise on magic that circulated in manuscript form during the European Renaissance. It is recorded in modern reference sources as a Latin occult manuscript of that era and is associated in provenance with the Elizabethan scholar John Dee, who owned a copy. One extant manuscript copy is catalogued as Sloane MS 8 and in that copy the heading Tractatus Astrologico Magicus appears (it is unclear from the cited sources whether that is a formal alternate title or a descriptive heading in that particular manuscript). The two extant manuscript versions are reported in the sources to differ only slightly. Modern scholars have focused attention on the text following the rediscovery of two manuscripts in institutional collections in 1994. Contents and claims (documented): The sources identify the Book of Soyga as a Latin magical treatise containing, among other material, a set of so‑called "magic tables" that have attracted specific scholarly study (see Jim Reeds' work). The manuscripts are generally described as containing astrological‑magical material; beyond this general characterization the provided sources do not supply a comprehensive inventory of rituals, seals, invocations, or doctrinal teachings, and therefore such specific contents cannot be asserted here without additional primary‑text evidence. Legends, reception, and limits of the record: The supplied sources do not report specific curses, supernatural dangers, or effects attributed to owning or reading the Book of Soyga. Scholarly and occult interest has centered on the work's enigmatic tables and its connection to John Dee; popular or folkloric attributions of supernatural consequences are not documented in the provided material. Further primary manuscript study and wider scholarship would be required to expand on internal contents or to document any contested claims about authorship or effects.