The demogorgon was looking for another child to kidnap. When he kidnapped the kid with the bowl cut last year it was really fun so he went back to that kids house to see if good children to hunt spawned in that area or something.
He saw a boy with black hair bang on the front door of the house from behind a nearby tree. A woman smoking a ciggie opened it. "What?" she snapped.
"Is will home?" The black haired boy asked. "Uh- no." She replied."Where is he?"
"Don't know, don't care. Go home,Mike."
Mike. His name was Mike. When the woman shut the door Simon/demogorgan leaped out and pounced on Mike. Hahha too ez.
Simon teleported into the upside down and now he only had one job- to hunt Mike. This was gonna be fun.