Trog dungeon - 1st level

           N
           ^            Index
          /|\          -------
           |          D: door
           |          F: trap door in floor
                    Out: stairs going up outside
                      s: secret door
                     S2: stairs going up, then down to 2nd level
                     Sd: stairs going down to 3rd level


   _____            _
Sd      |          | |
   _    |        _/  |
    |   |      _/ _/ |
    |   |    _/ _/ | |
    |   |  _/ _/   | |_
    |   |_/ _/     |   \_
    |    __/       |     \_
    |   |          |  _    \_
    |   |          | | \_    \_
    |   |          | |   \_    \
    |  _|_____ ___ | |     \    | 
     Su\_     /   \| |    _/  _/
       /_S_ D|     | |  _/  _/              _/|
          _| _D__ /|D|_/  _/              _/  |
         |  s    |/      /_             _/    |
         |       D      D_ \          _/  _/| |
         |       |\_  _/__\ \_      _/  _/  | |
         |_____ _|  D/        \_  _/  _/    | |
               | |D__D_________ \/   /______| |
               |D   D          \_  _/D _____ F|
                \__D |   |       \/   |     | |
               | D___D___|____________|     | |
               |_|                           |
                                            \|/ 
                                            Out

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