From the introduction The Battle Sisters of the Adepta Sororitas are the elite fighting arm of the Ecclesiarchy, and through ancient pacts form the Chamber Militant of the Ordo Hereticus. Wielding the 'holy trinity' of bolter, melta and flamer, the Sisters are renowned throughout the Imperium as the scourge of the traitor, the mutant and the witch. Scrivener Hoare has risked all to gain access to the secrets of the Vault of Origins, and brings us this report into the fanatical warriors of the Adepta Sororitas.