Austria. 1686. Two plagues rage in the countryside. One plague is smallpox, a torturous disease that ravages the body, turning homes into tombs. The other ailment is more mysterious, a scourge of occult origin, a plague that ravages the mind and consumes the soul. Here the deepest horrors are made manifest. Here the dead walk the shadowed wood. Here a spirit and its brood of changelings emerge from the earth to feed. Into this malefic maelstrom enters Dorin Toth, famed occultist and investigator. Accompanied by his faithful greyhound, Vinegar Tom, Toth must find the source of the eldritch epidemic. Will Toth and Tom prevail against the blights that they uncover? Or will the dark storm of ghosts consume them?