As the battle-brothers of Fifth Company struggle to keep the Chaos-worshipping forces of the Unworthy at bay in the warrens of Port Imperial, it falls to the elite warriors of the Ravenwing to hunt a mysterious traitor, one of the Fallen. What awaits Sergeant Cassiel and his Black Knights squad in the depths of the corrupted space station? Read it because It’s another view of events in the novel Ravenwing, adding depth to one of the key scenes of the book as we see what was happening with the brave warriors of the Dark Angels Fifth Company while the Ravenwing hunted one of the Fallen.