Castiel kills a man while under the influence of an unknown force, after which he takes flight and tries to hide from justice in the forest, but gets into new troubles - he becomes a necromancer against his will. At the same time, it turns out that the emperor responsible for the death of his parents ordered the capture of the newly-minted necromancer. Partly, the monarch’s desire couldn’t come at a better time – he needs to get even. There's nothing to lose. Cas can know the sweetness of revenge only by following the paths of a difficult path, and also understand who and why bestowed abilities about which he still knows little.