Two Related One-Round AD&D Living City Adventures for Characters of All Levels
From the introduction:
It appears as if the Wizards Guild needs your help. Again. Looks like one of their agents has gone missing. This tournament is part 3 of The Saga of the Diabolical Grasp It has both a normal tier one through four adventure, along with a high risk/high reward adventure for very capable teams consisting of characters all at least 10th level, who want to risk it all in the pursuit of glory and adventure.