Hall of Infinite Doors

Out of the four doors in this hallway, you decide to choose the Marshmallow door. The door is simple and nice. It is made of oak wood material and painted green with a picture of a marshmallow tacked up on the middle front part of the door. Above the door is a sign that states "The Marshmellow Door". Reading it, you realize the Marshmallow in it is spelt Marshmellow.
Strange...
You reach for the handle of the door but before you can turn it, the door swings open itself and an invisible force of some sort pushes you through and you fall forward into the darkness that lies ahead...