Webbed Chamber                                         -      -      - 
(-------------------------------------------------)     - <---(M)---> E
                                                        -      S     SE

This medium-sized room looks a lot like the rest of the chambers you've
seen in the area, except for the fact that all the walls and the floor are
covered with thick webs.  You touch one experimentally, and find that it is
soft and silky but very sticky.  You decide that you probably don't want to
meet whatever spun these webs.