A mysterious and disturbing summons brings Aurien Pemmick, an untested deacon of the Church of Druthal, across the border to a peculiar and disquieting kingdom: Kellirac.

Despite being in this antiquated and superstitious place, Pemmick is determined to root out the truth behind the summons. But Kellirac proves to be a place of dangers beyond the natural realm, especially since Pemmick arrives on the eve of Hultichia: a sacred night where the locals claim the dead will walk.

Pemmick's faith is tested against Kellirac superstition, even as his mission threatens to drag him into madness, on the darkest night of his life.