The final cards of a powerful artifact based on the legendary Harrow deck finally lie within the grasp of the heroes who seek to defend the very future of reality from being set in stone, but fate itself has its own plans. Will the heroes of Stolen Fate make their own way into an unknown future and clash against the very creators of this potent magical artifact, or is destiny truly a force that cannot be withstood?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 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.Each Pathfinder Adventure Path volume contains an in-depth adventure scenario, stats for several new monsters, and support articles to give Game Masters additional material with which to expand their campaign. Pathfinder Adventure Path volumes use the Open Game License and work with both Pathfinder and Dungeons & Dragons 5E.