The Perfidian Gap is an area of space where a permanent Warp Storm currently rages across the region of the Ultima Segmentum, bleeding the Warp into reality. Sometime during the 41st Millenium, the Dark Angels Space Marine Chapter fought against a large force of Chaos Daemons upon the forbidden world of Locrus, located near the edge of the Perfidian Gap.


  • White Dwarf Magazine #341 (UK0, "Battle Report: Last Stand at Locrus," by Alessio Cavatore & Jervis Johnson, pp. 46-49, 60-64
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