The “Aetheris Essentia Compressorium,” more commonly known as the “mill” among the people, is the engineering masterpiece of the head of the artificers’ guild, the dwarf Fregnard Blixen. This remarkable machine can condense scattered magical energy and convert it into mysteries—coins that contain magic, which can be used in various magical practices.
The mill’s operating principle is based on a complex process of alchemical transmutation and arcane spells, allowing magic to be materialized and compressed into a physical form. Although the theoretical foundations of this process are known to artificers, the exact schematics and formulas remain Fregnard’s greatest secret. Nonetheless, the League of Free Knowledge continues its attempts to recreate the “mill,” aiming to provide access to mysteries for all levels of society. They believe that by unlocking the device, they can reveal its potential to a broader audience, which could radically change the social structure and distribution of magical power in the world.