! >HW  It's the draught from this slightly-concealed window which propels the
!      balloon:
! ----------------------------------------------------------------------------

Object -> "high window"
  with name "high" "window",
       description
       [;  print "A narrow, high window ";
           if (self has open) "through which a draught blows.";
           "which is closed.";
       ],
       after
       [; Open: StartDaemon(balloon);
          Close: Achieved(2); StopDaemon(balloon);
       ],
  has  scenery openable open;

! ----------------------------------------------------------------------------