From the Module Cover:
Rogues in Remballo is a Swords & Wizardry adventure for 4–6 first level characters, a city adventure that gets the characters embroiled in strange plots, sinister intrigue, and fierce battles. Is the thieves guild of Manas encroaching on the territory of the Remballo guild? What is hidden in the sanctuary-courtyard known as the Four Corners? How is the powerful banking house of Borgandy involved with all of it? What starts as a straightforward mission actually involves a host of complications — some of which can be deadly if the characters don’t play their cards right. Rogues in Remballo is set in the Borderland Provinces region of the Frog God Games Lost Lands setting, but can be played on a stand-alone basis in any city.