The heretic's brand is a punishment only applicable to members of the Abbey, including the High Overseer himself. The sentence is only given to someone who has committed a great wrong in failing to abide by the Seven Strictures of the Abbey of the Everyman. It is a minor criminal offense to offer aid, shelter, or solace to anyone who bears the brand.
Campbell is made an outlaw after Corvo brands him. He catches the plague and spends his last days locked in the flooded districts abandoned refinery.
This fate for Campbell is made canon in Dishonored 2.
An Overseer mentions Campbell's fate to civilians at the Canal Plaza in the Campo Seta Dockyards.
![](https://i.ytimg.com/vi/beOm1G-BcEY/maxresdefault.jpg)