The Worst of All Possible Worlds is a Pathfinder adventure for four 18th-level characters. This adventure concludes the Stolen Fate Adventure Path, a three-part monthly campaign in which a band of adventurers are thrust into the role of the defenders of destiny itself. This adventure also includes new magical items and treasures to be discovered, including the final 18 powerful cards from the Deck of Destiny, and several brand new monsters to test even the mightiest of heroes.