Secrets of the Excavation Cave

Deep in the extraction tunnels of Sislesa Mine, huge stores of Crimson Marrow are hidden.
Some of it has even been refined and purified. That means the Blackstone Legion isn't just illegally mining at scale—they've set up a secret refining workshop, and even built a carefully concealed passage used solely to transport the Crimson Marrow out.

And this is likely only the tip of the iceberg.