City-by-city, kingdom-by-kingdom, the Palleseen have sworn to bring Perfection and Correctness to an imperfect world. As their legions scour the world of superstition with the bright flame of reason, so they deliver a mountain of ragged, holed and scorched flesh to the field hospital tents just behind the frontline.

Which is where Yasnic, one-time priest, healer and rebel, finds himself. Reprieved from the gallows and sent to war clutching a box of orphan Gods, he has been sequestered to a particularity unorthodox medical unit.

Led by 'the Butcher', an ogre of a man who's a dab hand with a bone-saw and an alchemical tincture, the unit's motley crew of conscripts, healers and orderlies are no strangers to the horrors of war. Their's is an unspeakable trade: elbow-deep in gore they have a first-hand view of the suffering caused by flesh-rending monsters, arcane magical weaponry and embittered enemy soldiers.