Haunted School Or Not?

I am now 13. i was 10 when this happened. i went to a school called Sent Marry school everyone one said it was haunted. one day me and my friend was going to get something for the teacher as we were walking past we saw a little door it was really dark i dared my friend to go in there she did. she came out screaming. she was shouting red eyes red eyes. i said what red eyes she fainted. next day i went 2 see her in hospital she couldn't remember anything. a few weeks after we walked passed the same door . she just stood there we heard a really big BANG, she fell she went back up and said she could remember everything we looked inside the door then the door slames shut. then a hospital bed came fliying down the steps then we heard a ambulance going past. 2 days after the head teacher was found dead in the little door we looked in with a needle in his arm.so was it a school or a hospital?