800px-Scarus sector map
The Scarus Sector is a division of the Segmentum Obscurus close to the Eye of Terror and bordering the Calixis Sector. Following the 13th Black Crusade, Orks have taken the opportunity to invade the Scarus Sector and continual Ork infestation remains a very real problem in this corner of the Imperium.2 The Scarus Sector was also the main area of operation for the Inquisitors Gregor Eisenhorn and Gideon Ravenor.1