This scenario, Part 6 of the Return to Freeport campaign, was released back in October. It is the finale for the series, following the PCs as they return to Freeport after their big fleet battle to seek the traitor who was colluding with the Mazin invaders.
On a positive note, it features a solidly written investigation that can succeed via multiple paths and that takes the PCs to numerous interesting locations throughout the city. The author did a good job of creating new locations, ones that are different from the usual tropes of the docs, taverns and the like. The scenario also includes a chase scene, using rules from the GameMastery Guide, and the combats feature a variety of interesting opponents. There's a good puzzle, too, which something that I think not enough scenarios feature. Finally, part of the adventure includes a celebration of Drac's Fall, which can be an homage to previous PCs who participated in the original Freeport trilogy.
Being critical, I think the scenario feels a little disconnected from the previous ones, since the big engagement with the Mazin has already been foiled. There's a solid threat presented by the primary antagonist, and the end location makes for a dramatic confrontation and battle. Even so, the fact that it takes place on a shadowy demi-plane that seems like Freeport is a little weird, given that there's already an alternate version of the city—Freetown—existing in the Abyss, as detailed in the adventure Hell in Freeport. I also worry that some of the scenes don't take into account flying characters, which seem to be pretty common at high levels.
All in all, I think it will be fun.