**********  map of Sewers  ***********

  muddy                                            small room
   sewer      *-------------*----------*------>*------->*-------*-------*
     *        |             |          |                |               |
     |        |             |          |           S    |               |
     |        |             |     anoth|er         E    *               |
     |        *-----*       |          *-----*----*W    |               *
     |              |       |     inter|sec  |   R|E    |               |
     *-----*        |       |          |     *   O|R    |               |
     |     |        |       |          |         O*     *-------*       |
     |     |        *-------|----------*         M|     |       |      W*       
 mud |     |        |       |          |         S|     |      D|      A|      
  hol*     |        |       |          |          *-----*      A|      T|      
    /      |        |       |          |                       R|      E|      
   1       |        |       |  old     |                       K|      R|      
           |        |       |    well  |                        |      Y*-----*
           |        |       |     *----*-----------------*     P*       |     |
           |        |       |    /                       |     A|      S|     |
           |        |       |   *                        |     S|      E|     |
           |        |       |                            |     S|      W*     |
           |        |       |                            |     A|      E|     |
           *--------*   *---*-----------*----------------*     G|      R|     |
           |            |               |                      E*       |     |
           |            |               |                      W|       |     |
           |            |               | DUMP                 A|       *-----*
           |            |               |/   pit               Y|       |    /
   dark    |            |          *<---*----*                  |       |   /
    pit    |            |         /     |   /                   |       |  *
    *------*------------*         3     |  4          sewers    *       |
   /       |            |               |        *shaft  *      |       *
   2       |            |               *       /|       |      |       |
           |            |               |      5 |       |      |       |
           |            |               |        *       |      |       |
           |            |               |        |       |      |       |
           *------------*---------------*--------*-------*------*-------*

1 - under mudhole (level 2)
2 - under dark pit (level 2)
3 - odd intersection (level 2)
4 - under pit (level 2)
5 - under shaft (level 2)