Dishonoured

At Blight's Edge, High Marshal Helbrecht and the Black Templars become embroiled in battle against a deadly foe. Their crusading prowess is tested to the very hilt against the soulless Necrons. Bleeding and beaten, oaths are sworn by Helbrecht and his warriors to avenge their dead and reclaim Blight's Edge from this menace.

Read it because
It's the story of how High Marshal Helbrecht lost his hand! It's been hinted at in codexes for years, find out the truth behind it for the first time.