|Marine||Basic Data||Warband Symbol|
After a disastrous war against Ultramar, the Death Shadows withdrew to their secret stronghold on the Fortress World of Sybari. In 745.M41, while they were planning a strike against Macragge, tendrils of Hive Fleet Behemoth rampaged into Sybari and devoured it, annihilating the warband to the last man.
- 1: Codex: Chaos Space Marines (4th Edition), pg. 20
- 2: Codex: Tyranids (5th Edition), pg. 10
- 3: Codex: Chaos Space Marines (6th Edition), pg. 19
- 4: Black Crusade: Game Master's Kit, pgs. 8–9
- 5: Codex: Tyranids (8th Edition), pg. 16 The Sybari Slaughter