Good Delvak,
I can only give out a information that I got from the northern shore, and this is what it looks like.
The Lizardfolk are wicked and corrupt, although they were not always this way. They would kill me if they could, and harvest my bones. I do not know the source of their disease, but their presence on this shore is unnatural and perhaps this disease is nature's way of correcting their corruption.
Grey ones may think this, but I am afraid that if we are mistaken, it might point out to be a great trouble. Yes, they are wicked and vicious creatures, not easily to been made dealings with. I also know, that if the disease is not natures doings, it may spread and then even other creatures would be targeted by it.
Adrian