From the blasphemy of the fallen… Our Emperor, deliver us. At the edge of the Imperium sits the fetid jungle world of Lautis. Amidst the creeping foliage and ancient monuments, a horror is rising. From the depths of a crumbling cathedral come bloodied nightmares, intent on fulfilling their dark purpose by any means necessary. Only one thing stands in their way: the wrathful, holy fire of the Adepta Sororitas. Filled with the light of the Emperor, Sister Superior Augusta and her squad are a force to be reckoned with. They are here to purge the darkness from Lautis with prayer and bolter, and nothing will stop them. But the things that dwell in the darkness aren’t afraid. Augusta must put her trust in her Battle Sisters and lead them into the shadows of the crypts in search of the truth. Faith and fire are powerful weapons, but will they be enough to defeat the sinister powers that lurk in the deeps?