98-8-13 aka the Red Ghost or Red Witch is a creature made by Trevor Henderson.
Description
It is a tall red figure with a red sheet and face, which is usually emotionless. It can lean a lot, where it would usually fall over. She hates alive humans, so this might mean that she kills. Well, it's unknown if she kills, but she likes dead humans.
Gallery
Source
https://mobile.twitter.com/slimyswampghost/status/1058246611929690113