N'kee is a creator of a catalytic poison that builds up in the adrenal glands. It releases Chaumurky in the victim's brain every time he consumes spice beer. The beer is transformed into the poison which then degenerates the victim's thought processes. From start to finish, this may take several years and it is almost impossible to detect without a detailed Suk autopsy.
It is one of the most insidious toxins permitted under the accords of Guild Peace and the restrictions of the Great Convention.