A sign, symbol, or identifying mark in Mid-World. Siguls serve various purposes - they can be personal emblems, marks of allegiance, or magical symbols of power. The Crimson King's sigul is a staring red eye, while the Big Coffin Hunters bear blue coffin-shaped tattoo siguls. John Farson's sigul appears at crime scenes to mark his followers' work. Siguls carry weight in Mid-World culture as declarations of identity and loyalty, and can function as warnings or claims of territory.