Mirrors -

: The room contains four glass walls and buttons. Entering from different sides and pressing buttons reveals a secret elevator.

: The character literally or figuratively looks in a mirror. Mirrors

In creative writing, the occurs at the midpoint of a story. : The room contains four glass walls and buttons

: They must decide if they will remain the person they were or change to overcome their conflict. Mirrors

: Reaching the second floor via the elevator allows you to gain duplicate floorplans that permanently stay in your deck.