: The book doesn't say, though why
: these powers protect them completely when carrying
: wight parts, but don't protect them completely when
: struck by a pus-based attack. I'd hypothesize a Ghol's
: skin and mucous membranes are chemically impermeable
: to wight toxin (it can't penetrate the membranes of
: the outer cell layer), so that it isn't hurt by simply
: holding a piece of a wight; but when a Ghast punches
: it, or a wight polyp strikes it, the force of impact
: drives some of the toxin into the Ghol's body through
: pores and fissures in the skin, and the Ghol suffers
: accordingly.
Or perhaps the skin on their hands is thick and impermeable, while the rest of their body is more vulnerable.
