Can only enter this floor from the 3rd, or 11th floor. This place becomes what the person inside of it is imagining, making it more of a 'dream land'. Whatever place you imagine, even if its a place where you think no doors exist, these 13 doors will still be there, only with no set location. One door leads to each of the following:
-1st floor
-2nd floor
-3rd floor
-4th floor
-8th floor
-9th floor
-10th floor
-11th floor
-12th floor
the other 4 doors lead somewhere only Tera knows.