This is a great find for bringing a bit of real-world lore and mythos into BitD. It might be worthwhile to compose an index with each demon, their elemental affinity, magnitude (power?), and a few defining traits to help others develop demons in their games. The document itself could be an artifact of great note or worth in the BitD world. Perhaps this artifact is tied to a score or could be used to launch the careers of a whole new crew of demon hunters.