Black Chamber
  Nameless
  An Interactive Fiction
  Release 1 / Serial number 150512 / Inform 7 build 6M22 (I6/v6.33 lib 6/12N) SD
  
  Black Chamber
  Despite its menacing name, it is quite an ordinary room, underlying the post office above. Here letters are brought each day, unsealed, transcribed, resealed, and sent again on their way; their contents then analyzed and recorded.
  
  A woman whose name has never been disclosed to you sits at the window, writing numbers on a sheet of paper.
  
  You can also see a safe box (closed) here.
  
> >   Black Chamber
  (Testing.)
  
  >[1] test sight
  (Testing.)
  
  >[2] i
  You are carrying:
    a letter from the emperor
  
  >[3] x letter
  Though its origin is obvious, its meaning is secret: the letters are an inexplicable jumble.
  
  >[4] ask nameless advisor about cipher
  "I know many dozens of ciphers," she replies, smiling in a disquieting way.
  
  >[5] show cipher to nameless advisor
  You can't see any such thing.
  
  >[6] ask nameless advisor about the letter
  "It is enciphered," she remarks, glancing over the contents. "A substitution cipher of some complexity, I believe."
  
  >[7] show the letter to nameless advisor
  "It is enciphered," she remarks, glancing over the contents. "A substitution cipher of some complexity, I believe."
  
  >[8] show nameless advisor the letter
  "It is enciphered," she remarks, glancing over the contents. "A substitution cipher of some complexity, I believe."
  
  >[9] test knowledge
  (Testing.)
  
  >[10] open safe box
  You open the safe box.
  
  >[11] put letter in safe box
  You put the letter from the emperor into the safe box.
  
  >[12] close safe box
  You close the safe box.
  
  >[13] ask nameless advisor about the letter
  "It is enciphered," she remarks, after you have offered a detailed description. "A substitution cipher of some complexity, I believe."
  
  >[14] show the letter to nameless advisor
  You can't see any such thing.
  
  >[15] ask nameless advisor about the apple
  There is no reply.
  
> >