Dental Hospital Escape

You were having trouble with your teeth for the last few days and you wanted to go and visit the dentist to get your teeth checked up and treated. Being new to the city you did not know where exactly to go and this evening as you were walking around the streets you saw a dental hospital. With a sigh relief you entered the hospital but on getting inside you were totally surprised to see that the place looked abandoned for years. It was not the case when you saw the hospital from the outside. You started to fear for worse when you realized that the door through which you had entered is jam and you cannot open it. Find another way to escape.