Encyclopaedia Arcana is the definitive Lex Arcana setting compendium, with innumerable ideas for players, giving them detailed descriptions of the 20 Provinces of the Empire and communication routes connecting them. The 224 pages hardcover volume includes information about the structure of Imperial organization, bureaucracy and legions, details about the Roman culture, economy and society. It also presents a detailed section dedicated to the secrets of divination, magic, and prophecies, and many new maps showing military camps, harbors and other locations.