The Bloody Brotherhood was a Chaos Cult, that was formed from an Imperium freighter's crew that mutinied while the ship was in the Warp. Though they took command of the freighter, it had drifted into the Eye of Terror and was found by the Crimson Slaughter Warband, which hauled the ship aboard their Space Hulk, the Lost Hope. The Bloody Brotherhood were then taken to a dark and derelict corner where all newcomers are first placed by the Warband, but were soon attacked by Daemons that dwelled there. This was the process through which the Crimson Slaughter gathered new recruits and those of the Bloody Brotherhood that survived the Daemons' attack, were soon forced to take the Warband's next test; to prove themselves worthy of joining them.
- 1: Crimson Slaughter - A Codex: Chaos Space Marines Supplement (6th Edition) - The Crimson Slaughters Unleashed: Tomorrow's Slaughters