As you walk home one day, groceries in hand, you accidentally bump into an old lady. She interjects your profuse apologies and hands you a peice of paper and tells you to lay out a black blanket and read off of the paper.
You thought this was strange but accept that she took your apologies and move on with your day, walking back home wondering if it would actually do something.
Soon enough you arrive home and put away the things you had bought from the shops. Letting out a sigh you decide to follow the old lady's instructions and lay out a black blanket on the floor and read from the paper she handed you.
You finish the last word on the paper and a deep red glow appears above the blanket – almost like a portal of some kind. Then as the glow fades away a man with black hair and fairly large horns stands where the glow once was. He looked at you annoyed.
"AGAIN HUMAN! LET ME REST CAN YO-..wait you're not that old woman!"