Second battle of Prospero - event reinforcements!

"Saving mankind from the darkness is no weakness."
– Jaghatai Khan, Primarch of the White Scars

In the thick of battle a secret plot emerges from the White Scars' own ranks. Traitor Warrior Lodges attempt to take control of the Legion's fleet just as reinforcements arrive.

A Plague Marine joins the traitors in battle! To combat this toxic menace, Hibou Khan arrives to aid the Great Khan, but are his intentions true?