End of the Central Hallway                             -      -      - 
(-------------------------------------------------)     W <---(M)---> E
                                                        -      S      -

You have reached the northern end of the Runic Castle, where the hallway
ends.  You spot narrow exits leading to the Guard Walks on either side of
the hall.  A set of frosted glass doors to the north lead into some sort of
a garden.  A large stained glass window is carved into the wall high above
the doors.  As sunlight shines through, it is multiplied and amplified into
a gorgeous ballet of prismatic hues.  The central hallway continues to the
south.