A Grell Hive                                           NW     -      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      -     SE

A colony of grells hover around making additions of sculptures and
carvings of ancient gods along the walls.  These creatures must be the
magical beings that carved the tower itself.  They wield no tools, yet use
their steel hard razor like tendrils to do their carvings.  They notice you
as well, but pay no attention to you seeing as how you pose no threat to the
tower itself.  A powerful bellowing howl can be heard from the room to the
northwest.  It sounds like whatever roams that room is actively searching
for prey.  

A grell is here chipping at the wall with its beak.
A creature that looks like a brain with a huge beak is here, it must be a grell.