From publisher blurb:
This is a special adventure created for GenCon 2018. It determines the fate of the Mystery Men, whether they remain a factor within the Nile Empire after the death of Dr. Frest or they are eliminated to make way for new heroes. It also offers the first look at an alliance between High Lords. This is a Beta Clearance adventure, and the appropriately leveled Mystery Men themselves are included so you can play as the survivors looking for the rest of their team. At the end of the adventure there's a survey so the GM can record the choices players made, and those choices will be referenced in the game line going forward!
It's near the end of the first year of the Possibility War. Dr. Frest is gone, and Dr. Mobius has started targeting the rest of the Mystery Men to eliminate them one by one. He's found a pocket reality and learned more about his own origin and how it relates to The Egypt That Never Was—but more than that it's a reality without the Law of Inevitable Return.
He's caught several Mystery Men and entombed them in this dangerous place, and carefully set a trap to lead the rest—or some equally powerful and troublesome heroes into the same doom. And he's brought in a powerful ally to make certain things go his way this time!