Arcana and the Mundane
Arcana is the only magic skill not tied to the Magic attribute.
As such, the gamemaster can optionally allow a mundane to
acquire this skill to represent their limited understanding of the
arcane documentation available to anyone. This knowledge then
can be used by the mundane to recognize rituals, preparations,
traditions, etc. The gamemaster can set a difficulty threshold
to use the skill in determining details such as a preparation’s
trigger, magician’s tradition, or type of spirit.