You run out of the final exit door, panting, and slightly insane.

You had arrived at the circus recently, and as you were going on your tour, you saw an exit door. When nobody was looking, you snuck through the door and you were met by a series of even more doors in some kind of office labyrinth. You have finally made is through the last door and you find yourself in The Void.

The door disappears from behind you, leaving you trapped.