How to cast out a haunted hound

Surprisingly, scripture has little to say about how to remove haunted hounds from an underground lunar tomb. 

Exorcism will not work: this assumes an evil entity has taken control of the body of an innocent. In our case there appears to be no physical dog body, the machete sliced right through the ghost as if nothing was there. It is no hologram either, since holograms do not inflict bite wounds.

There is a bewilderingly large variety of cleansing rituals to remove evil presences. Using icons of saints, or holy relics appears to help quite well. Saint Kargan, who was martyred by being thrown into a pit with enraged dogs, may be invoked in our case. Alas, the closed relic of this Saint, an embalmed piece of his liver, is far away in Tash-Murkon space. 

Also holy water sprinkling, or drawing symbols with salt, or using crystals from the Satach's Spite mountains are mentioned. It is also reported that a black cat can act as a lightning rod, attracting and binding the evil spirit, that can subsequently be removed by removing the cat. 

We concluded that the latter method must be particularly well suited to canine spirits.

The experiment will have to be delayed a bit, as I am jump cloning back to Empire to participate in the celebrations for twenty years of PIE and ten years of SFRIM.