Threshold!  The northernmost town in the Duchy - and your last stop before your adventures begin.  Threshold, the gateway to mysterious castles, lost temples, deadly caves and caverns.  You have heard the stories and legends, now you wish to see for yourself.  This product provides a complete campaign adventure that will take beginning characters from 1st all the way to 3rd level and possibly beyond, drawn from the first nine modules of the B-series adventures.  (Thanks to Eric Pass for transcribing this info).

A sinister force, long thought destroyed, stirs from the black hole that spawned it.  Like an ebony darkness it prowls the land and safety is but an illusion, for it watches from every shadow and ponders possibilities.  What began years ago with the introduction of the players to the quiet village of Hommlet and the amazing lands of Greyhawk, at last is complete.  Here is the long awaited campaign adventure featuring the ruins of the Temple of Elemental Evil!  Evil broods and grows beneath these blasted stones.  This is your chance to drive it back and scatter its forces again.  This product includes the village of Hommlet, the filthy shire of Nulb, and reveals the ruins of the Temple of Elemental Evil and the labyrinths that lie beneath, a warren of darkness.  And beyond these ruins, even more is revealed.  For the first time this product provides a complete campaign adventure which will take beginning characters from 1st all the way to 8th level and possibly beyond!  Hours of adventuring await you!