Lucifiel "Louie" Morningstar is assembling a team to venture into The Underdark on an "excursion", the details of which he is holding close to the vest. This team of Underdark specialists all have skills, knowledge and resources that will prove vital in the success of this mysterious mission. What is this mission's details? Why have these specific agents been chosen? What will they encounter in the perfectly lightless realm of The Underdark? What just made that clacking sound? All this and more to be discovered in this campaign!