Hounds of the Ruined Sky
The Hounds of the Ruined Sky was a Chaos Cult, that dedicated itself to killing Space Marines.[1]
History
Using a thousand prayer-ships, the Hounds surrounded and then attacked the Mathus space station, while it was being guarded by a small Space Marine force from the Imperial Fists. With the power of the Warp, the cult used their ships to freeze the space station in time, before they launched their attack on the Space Marines. Inside the station, due to the Warp ritual, two hundred years passed as the dwindling number of Imperial Fists were under siege; as the cult bred on the station and attacked them for generations. It was only when the Blood Angels responded to a distress signal from the station, that the Warp ritual's power was broken and the cult was finally destroyed.[1]