Ever jealous of the mythological Olympians, the gods of Ishar set out
one day to create their own looking glass into a realm of mortal combat.  The
result was this strange region in which each room is formed of a pure element:
earth, air, fire, or water.  No harm can befall a mortal in this odd land,
but special staves allow mortals to cast each other back to the normal world.
Mortals have taken this as a game, and sometimes travel in small groups to
the circle of stones just north of the Eastern Road in order to test their
speed, accuracy, and luck against one another, all to the vast amusement of
the watching gods.  Rumor has it that a set of directions is posted in the
entryway.

such as "spell" or "MUD Basics"