Talk:List of Slavic creatures/@comment-43557065-20190819154007/@comment-44247114-20191027012706

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I'm trying to find out what the Hym was based off of from the Witcher 3. What I know about the demon is that it:

- Attaches and feeds off a persons guilt

- Forces the person to cause bodily harm to themselves

- Influences the victim through dreams

- Dislikes light

Any idea what of what myth sounds like this?