Eldritch horror

You see in your mind’s eye, a goth girl who is holding a large black book in the dead of night. Chanting something in an eldritch language. As she does the chants and dances from the book, the room around her apartment all of a sudden starts to shake and her eyes and mouth glow with bright white light as she is filled with otherworldly magic. As light glowing out of her glows brighter and brighter, it all of a sudden STOPS…and she falls to the ground. This girl came looking to bargain with Eldritch gods and gain some cool powers or something. Instead, what she got was something far…far worse…you. As she stands up from the floor, she looks around first confused and then disappointed with the apparent empty sumoning circle. "What a lovely mortal morsel." Your sinister voice whisper in her head. She instantly freezes in panic.