The Duke of Richleau and Rex van Ryn know instinctivlely that something bizarre has happenend ot Simon Aron. Why else would he fail his most trusted friends? The Duke has a suspicion where the answer lies. But nothing can prepare him or van Ryn for the terrible confirmation of his fears. Their oldest friend has fallen prey to the Forces of Darkness- through a powerful emissary of Satan against whom all earthly faculties are useless...