had another encounter with that spirit I was talking about tonight. Saw the shadow walk by in the hallway again and tonight it actually came in the room and was standing next to us. We were listening to the song "Ten Years Gone" by Led Zeppelin. The song was released in 1975 and the guy died there in 1976. We were listening to the guitar solo of this song and my teacher and I both suddenly broke out in goosebumps. This was after we saw its shadow pass by a few times. We felt a very cold wind in the room. there were no windows open at all. The room was very warm to begin with and suddenly dropped what felt to be a good 15 degrees in a matter of seconds and this was all during this song. we let it keep playing and eventually stopped it. after we stopped it the wind, cold, and goosebumps went away not 30 seconds later.