The main reason is that the risk and reward are disproportionate.
Simply put, the City of Usmer is too poor, and the Great Valley doesn't have any notable specialties. The only commendable shipbuilding timber is rejected for mass logging due to the valley people's natural disposition. Despite the advantageous conditions, the shipbuilding industry can't flourish.
The Grand Road doesn't have many merchants. Those traveling to the Kingdom of Laiserman usually take the more convenient and straightforward Golden Road.
If the City of Usmer were as prosperous as Tavelan in Cesk, or even half that, surely many pirates would have their eyes on it.
After understanding the strength of the Brotherhood of Sword Spike better, Gaven eagerly asked: "I wonder how many ships can be allocated for large-scale maritime transport with the fleet?"
