A foul omen looms over the city of Riddleport. What could the dark blot over the city of swindlers and thieves mean? Apocalyptic whispers fill the street, priests search for signs from their gods, and rumours of strange happenings shake the city. Could this ominous portent be the work of a scheming crimeboss, mysterious cyphermages, or a petty pirate lord? Or does it prophesize some new menace come to Golarion? A step into Riddleport’s high-stakes underworld of sin and debauchery reveals that not all in the pirate’s paradise is as it seems. Only a small group of heroes can foil a terrible new plot that reaches from below to take fold of Varisia’s city of sin.