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Dark Haven was a lush and fertile world, teeming with life even before Human colonization. It was a hazardous world, filled with aggressive, fast-growing, and toxic plant life. During the Age of Strife, it fell under the control of House Orhlacc.
- 1: Imperial Armour Volume Thirteen - War Machines of the Lost and the Damned, pg. 69
- 2: The Horus Heresy Book Four - Conquest, pg. 67