Blackwell Town maintained its initial model, massively importing food through human merchants for sustenance and then selling iron ore at relatively low prices, thanks to the addition of dozens of Giant Treants.
The amount of iron ore mined from Blackwell had doubled again, but then it hit a bottleneck; although it was growing, the pace was very slow.
This allowed Blackwell to remain profitable without being excessively so.
Ultimately, it was about keeping a low profile; some of the iron ore, although mined, was piled up deep in the mines and not transported out.
Even the iron and steel furnaces produced by the Hobgoblin craftsmen were dismantled overnight, leaving no trace behind.
The visit of Feng Gedahast made Mr. Gaven realize something.
Only eat as much as you can carry; never overreach beyond your abilities, or you'll meet a swift and tragic end.
The reason Blackwell could develop was not that my vision was exceptional or my abilities formidable.