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During the 13th Black Crusade, it was one of the many worlds of Ultramar that were invaded by the Chaos forces of Abaddon the Despoiler. The Alpha Legion would eventually gain control of the Shrine World, but the Ultramarines Chapter Master Marneus Calgar later led an attack that freed Laphis and destroyed the Alpha Legion's forces.
- 1: Gathering Storm: Rise of the Primarch, Chapter 2: War Zone Ultramar
- 2: Codex: Space Marines (8th Edition), pg. 25