Riddle of the Chamberlain

Gridmapper:Riddle of the Chamberlain: Map saved

(12,4)n 13fnn    n 12fnn
            fcvvvv dddfft fdfb dddfff n nn
            nnnn ddddvfnnn  f nnnn fnnn  ffd11fccvvvv
             f  6f     f nnnn nnn
       gB      f 2ff2f    f n nn
  fff pB fB pB fB pB  n ddv14fnn  f n 9fnn  ffd10ff
  f16ffssssv fB fB 15fB fB fB ssv dfcvvvv fdftv fdfb dddfff nnnn nnn
  fff pB fB pB fB pB  nnnn fnnn  f nnnn fnnn
                f  ddvf
               2ff2f f
                f  f ff
                f  ffd7ftvvv ':::::::::::::'  tvv
           ggggdvv4ff2f f ff  f
           g    f  f    n fnn
           g    f  f   n nnn  nnnn nn
         ggg   2ffdddv3fff  n nnn  b  nnnn nn
         g      f     nnnn nn  8f n nnn
        g5fg     1f      nnnn nn ddfn nnn
        ggg     f       nnnn fnnn
        g
                sss(28,25,0)