School Of Magic Escape

As you were walking down the hill, something from the ground shone before you. You got down to see what it was and you picked it up. It was a golden key. The moment you got up with the key in your hand a door appeared before you. You could not resist the temptation of entering the key in the door hole to open it. You now entered the door and reached a School Of Magic. You spent some time looking at the amusing things in the school but finally realized that it is a strange world and now you have to get back home. Can you get out of the place? You have to.