Extend the Story - Add a Room

You wake up on the floor, You look around noticing you are in a empty world. There are white walls, white ground, and white whatever. You try to do something but there is no nothing. You then get transported to earth 2. Seemingly, you think about your experience at the Hall of Infinite Doors. You decide to go to a hotel and sleep for the night. But then, you wake up at the Hall of Infinite doors, but OUTSIDE. You are surprised how you got outside of the halls. But now... what do you do?

Try to think of a way to return to earth 2.