The Harlequins
Very little is known about this group.  It is said that the Harlequins hold
sway over a mysterious place, where things are not what they seem.  Elsewhere
in the realms, the Harlequins have been accounted for a series of seemingly
random tricks, events, and ambushes.  They have never been caught, and their
presence is revealed only when they wish it so.  Their behavior could perhaps
be best described as erratic, and they are just as prone to committing random
acts of kindness as acts of treachery and violence.  It would be foolhardy to
outguess them, as the Harlequins' actions are reliably unreliable.