As war grinds on in the Genovingian sector, Imperial medicae Lemual Sark investigates Uhlren’s Pox, a mysterious and deadly plague that is striking down the Imperial Guardsman who fight the war. As he narrows down the source of the contagion, Sark finds himself thrown into a plot by to wipe out the defenders of the sector and allow the Ruinous Powers their triumph. A short story from the Deathwing anthology