Dream of building, hogwarts, surrounded

I was in my high school, which was shown by the outside and surroundings, but inside was similar to Hogwarts in that parts were moving and corridors wouldn't lead where you were expecting them to - this was considered normal - and that my school was turned into a boarding school, but once you left the room there was no entrance back into it. We were woken in the night by a fire alarm, and teachers were forcing us outside to the bus laybys at our school - which are not the normal fire assembly point - while running through the corridors it began to resemble the stairs from the film 'labyrinth' and there were students running on upside down stairs and stuff. when we eventually got outside my English teacher was calling registers then began telling us all off for leaving our wands in our rooms, and about the importance of having then with us at all times. some how we then ended up in the middle of the school field, in our pyjamas surrounded by PE teachers about to play what appeared to be rounders, while the main school building is burning behind us.