As the main agent of Arch-Plaguelord Nurglitch, leader of Clan Pestilens, Skrolk is an ancient evil who has lived many times the normal Skaven life span. The pestilences he has unleashed have brought unimaginable woe upon humanity. He clawed his own eyes out at the sight of Nurglitch's radiant corruption, wishing to see no other creature after witnessing one so glorious. Through the blessings of the Horned Rat, he sees the world again, but only in the purple and greens of corruption and decay.