Book 2, Chapter 71

Trade

Crystalline yellowsteel and maple amber were very rare materials that were used in the crafting of grade 2 runes. The former came from unusual ore veins, while the latter could only be excavated from ancient ruins. Both were extremely scarce in Norland, sold by the gram. This piece of yellowsteel alone would be a hundred thousand gold back home, while the large maple amber could be sold for twice that.

His intelligence reports also gave him some understanding of the economics of this plane. Twenty magic crystals could be sold for nearly 10,000 coins, but that was only in the human empires. Because of how rare mages were and their monopoly on high-end magic equipment, few...