Umbraen Practitioners did not capture every Spark they found. Instead, they left many in their natural zones and returned at intervals to farm energy crystals, keeping a stable income for their kingdom.
As long as a Spark posed little danger and did not threaten nearby villages, they allowed it to remain where it was. They waited for it to reshape its surroundings with its particular energies, then came back to harvest the crystals, left the Spark alone again, and waited for the next cycle. In this way, they kept a continuous, reliable harvest running across the land.
"How much income are we talking about?" Henry asked, curiosity sharpening his tone.
They had also found a few ways to farm energy crystals so far, but none of them were stable.
Adyr shrugged. "I don't know. You need to find out for yourselves."
The information he had came from other Titled Practitioners, so they had only given him vague numbers. They were not sure what the Umbraens' yearly income actually was.
