"The news of the beast transformation disease was not released by the Earl; on the contrary, he went to great lengths to block it, even killing many ordinary Barbarians who escaped from the mountains.
I also learned about this matter from home, and after confirming other news, but most people don't know about it."
Vick added a comment along those lines, which Walter was already suspecting; hearing this, he practically confirmed it.
Although it seemed through some means he temporarily suppressed the discontent of those nobles, Walter understood the simple logic that cutting off someone's source of wealth is like killing their parents, and he didn't believe the Earl didn't understand this.
The beast transformation disease can make everyone in the Barbarian Tribes on edge, so the Earl couldn't possibly be unaware of its danger.
Yet he covered up the news, driving the nobles to attack; the meaning is obvious — he's sending them to their deaths.
