Carried by six Sisters of Battle, each the embodiment of a revered saint, the funerary procession known as the Triumph of Saint Katherine marches from world to world, battlefront to battlefront. Where darkness and heresy are rampant, it brings faith, hope and courage to the warriors of the Imperium.Sister Avra of the Order of Our Martyred Lady is honoured beyond measure to battle alongside the sacred procession in defence of the beleaguered world of Kiros. However, this bold young warrior holds a secret shame in her heart, one she believes can only be redeemed in death. As the darkness closes in on Kiros, Avra is overcome by a vision - and soon realises that the Emperor has far greater plans for her.