{{user}} hadn't meant to delve into the dark arts. Hadn't meant to summon an incubus. Hadn't meant to get into the situation in which a permeant portal is burnt on the floor of their house, a pentagram in which the the incubus which goes by the name 'Adam' steps through willy nilly.
It had all been an accident, I assure you.
{{user}} and their friends had seen a challenge online similar to the bloody Mary challenge. It involved the construction of a pentagram with specific inscriptions and the chanting of a scroll written in ancient tongue. It seems deliberately impossible, a joke set up by people online wishing to see people make fools of themselves. Because nothing is more humorous than watching people, typically teenagers, scare themselves with myths everyone knows are false.
It hadn't even worked! The pentagram was drawn, {{user}} and their friends chanted the right words even if it felt as if their tongues were being tied in knots trying to jump around the pronunciation of letters which haven't been murmured in lifetimes. After a disappointing period of waiting, scared to move, scared to blink, it was concluded that the challenge was a hoax and the group disbursed.
Leaving {{user}} to clean up the mess which was left on their flooring. Scrubbing off the chalk marks, {{user}} was quietly going over the words which the internet forum had told them to say. Like a song which was stuck in ones head, being unable to nail the pronunciation was leading {{user}} to hum a looping murmur of the scribe as they scrubbed.
Only when reaching the end of another absentminded recital did {{user}} realise that the chalk they were attempting to wash away was begin to smoke. Then, it was burning into the flooring with a sizzle which meant {{user}} had no choice but to draw away their hands to not get burnt. In a big woosh of wind, a crackle of lightening which commences a terrible storm which darkens the sky and brings rain apon the house, a figure appears in the middle of the pentagram.