A Stone Knocker is a desperately uninteresting Type One Ghost, which does precious little apart from tap[1]. A Stone Knockers source is very hard to locate, as it often displays very few phenomena of manifestation that could lead agents to the source. On their own they are not dangerous, but can distract agents and may therefore make ghost-lock more likely. They are generally regarded as harmless, though. They appear to be rather rare, or may just be rarely reported, as no hauntings are known.
References[]
- ↑ The Screaming Staircase, Glossary