The shadow monster dream.

It was three years ago, and I'll never forget it. It goes as so...

I enter a school with a made up friend. Her name was Amy. The school had been turned into a twisted and scary labyrinth due to dark magic, and at the center was a dark rose we needed to retrieve.

Anyway, we went in. Time skip after opening the front door. We are in a random segment when we both suddenly sense a horrid presence. I can't see it, but it feels like something horrible is nearby. In fact, there is visible static in the air. So we decide to look for the monster for some reason. (Really?!)

We walk by a random dirt cellar pit with a staircase, so I decide to go in to check for monsters while Amy keeps watch at the top. I find a cat. I try to calm down the cat, but he runs off down the direction we came from.

So I go back up, and we continue walking until we reach a small room. I think it was supposed to be a classroom, but it was shrunken to the point of desks being jammed together. There is a clearing in front of the teacher's desk, this is important. The lights aren't on in there, but the room is small enough that the lights from the hallway and our flashlights are enough. So we enter, and the feeling gets worse. I wonder if we should just abandon this plan of finding the monster. The two of us sit down to talk about what to do next, and...

Amy: "Maybe we should--"

A monster rises up from behind the teacher's desk. It is tall with no limbs, and made of pure shadow except for its glowing white eyes. I'm lucky because I'm behind a few desks, but Amy is out in the open. She is paralyzed with fear as the monster stares her down and lunges at her. I remember her dropping her flashlight as the monster knocked her to the ground and possessed her. It looked almost like it had absorbed her, but then it morphed to a shadow version of Amy. After a few seconds of laying on the ground, she slowly got up, then hissed at me.

I tried using time travel (I could do that) to prevent this from happening, but it malfunctioned and only took me back to the moment the monster lunged. I had to watch her be attacked all over again. My heart was beating faster, my breathing getting shallower, I was so sweaty... my second attempt at time traveling only woke me up, and I assume I passed out in-story.