Granny Deaver is the antagonist of "Ghost Granny", the first story in the first Goosebumps Triple Header book.
History
Granny Deaver is a slovenly old lady who has been living with Kelly's family for the past three years. Despite being called Granny, she isn't actually related to the family, but a friend of their late aunt. Despite her gross and obnoxious behavior, the family doesn't get rid of her due to her having nowhere else to go. Eventually, she passes away. Kelly's family are the only ones to attend her funeral since she had no friends or other family members. But when the family go home to celebrate, Granny Deaver's ghost soon returns, now with even less incentive to leave the family alone. She continues to be a burden and even ruins Kelly's birthday party. Overtime, her body begins to decompose, while also gaining a more nightmarish figure whenever she gets angry.
Kelly's family, with no other option, consider moving out, only to return home to see that Granny Deaver has caused noise complaints among other things. She then tries to attack Kelly, but can't because she's a ghost. Eventually Granny Deaver, defeated, just leaves. The family breathe a sigh of relief, only for more ghosts to arrive in their house, being invited to stay by Granny Deaver.
General information
Appearance
The story doesn't go into much detail on her physical appearance other than the fact that she's a very gross person. Her ghostly form however begins to decompose rapidly overtime, making her even more gross and creepy.
Personality
Granny Deaver is a gross, slovenly, mean old woman with no sense of boundaries or personal space. She'd loudly slurp soup, or even wipe her mouth with Kelly's art project. When she dies, her ghost is far more obnoxious, often howling all night. She is also very quick to anger, especially when it comes to people who don't like her, particularly Kelly. This turns her into a more frightening ghost complete with fangs and claws.