Ship's Bridge
  Elsie
  An Interactive Fiction
  Release 1 / Serial number 150512 / Inform 7 build 6M22 (I6/v6.33 lib 6/12N) SD
  
  Ship's Bridge
  There is a door in this wall -- or at least, the potential for a door, since currently it is sealed, distinguishable from the rest of the wall only by the warning stripes on its surface.
  
> >   C Deck
  (Testing.)
  
  >[1] open door
  You press the appropriate buttons, and a section of wall slides away.
  
  >[2] look
  Ship's Bridge
  There is a door in this wall.
  
  The sliding door slips back into place, sealing the wall as though there had never been a breach.
  
  >[3] enter door
  (first opening the sliding door)
  You press the appropriate buttons, and a section of wall slides away.
  
  C Deck
  There is a door in this wall.
  
  >[4] z
  Time passes.
  
  The sliding door slips back into place, sealing the wall as though there had never been a breach.
  
> >