The Pathfinder Society has sent the PCs to the city of Oppara, capital of Taldor, for a clandestine meeting with Gloriana Morilla, a trusted ally who bears dire news. She reports that Venture-Captain Muesello has gone into hiding following a strange series of crimes during which the perpetrators used wayfinders, the magical compasses that are among the Pathfinders' most iconic tools. Perhaps more troubling, these wayfinders each bear signs of Muesello's unique tinkering, and all of the crimes have targeted the assets and allies of Grand Princess Eutropia Stavian, the nation's new monarch. With the crime spree steadily escalating and Muesello suspiciously evading her agents at every turn, Gloriana Morilla needs a group of skilled Pathfinders to investigate the recent crimes and track down the wayward venture-captain.