Da Mad Dok Grotsnik, creator of Ghazghkull Thraka, is a painboy beyond legend. What – and who – he harbours in his formidable brain is a mystery to every ork but himself, and an army of orderlies provides him with a constant supply of flesh with which to tinker.
When Grotsnik comes to the aid of Beastboss Bakmun, whose rampage on Hive Prome teeters on the brink of going out not with a Waaagh! but with a whimper, Bakmun can't believe his luck.