From Drukhari:
This planet had little direct contact with the Imperium, only visited every few decades by the agents of the Adeptus Administratum to collect tithes. On their last routine outing to Harron’s Hold, they found the colony almost devoid of all life. The buildings and other structures were untouched, with food still on the table in many locations. After searching for hours, the team was finally able to locate a family hidden deep within a cellar, terrified beyond belief. They spoke of nightmarish forms arriving in the middle of the night, taking the townsfolk and disappearing as quickly as they came. A more detailed search revealed small amounts of blood and other signs of fighting, along with a few barbed shards that appeared to be a form of splinter ammunition common to the Dark Eldar. The family was relocated under the orders of a grim, nameless individual for further interrogation and examination concerning their encounter, while the colony was abandoned and “cleansed” from orbit out of precaution.