Moving Rooms in Boss Monster
For the purposes of moving rooms, a room is made up of every card in the stack at each of the five positions in your dungeon.

So when a card tells you to move a room, you move every card in that stack.

From the FAQs &amp; Advanced Rules section of the rulebook (page 19):


  When an effect allows you to swap the placement of
  Rooms in a dungeon, how do you deal with Rooms
  built on top of other Rooms?
  
  You can rearrange any stacks of Rooms, but you
  cannot change the order of Rooms within each stack.
  The visible Rooms do not change.