The Achilus Crusade is a war of re-conquest fought on three fronts within the region. It is a brutal conflict waged with every weapon that the Imperium possesses and its leaders have sworn in the Emperor's name that they will never retreat and never surrender. In spite of such intentions, the Achilus Crusade may yet fail. The growing Tau Empire, ever mindful of opportunities to further spread the Greater Good, has cast covetous eyes over the worlds and resources of the Reach and has initiated its own efforts to claim it. On worlds long forsaken by the Imperium, the slaves of the Chaos Gods reign while at the Reach’s heart, unsuspected at the Crusade’s start, the servants of the Ruinous Powers have created a blasphemous domain ruled by Daemon Princes and Chaos Lords, where the mutable laws