From the front page of the adventure:
Tensions between Calimport, Memnon, and Almraiven are a constant for the citizens of Calimshan. If war were to break out between any two of these cities, the third would gain a powerful advantage. Ala’Ammar, patriarch of House Asada, seeks to free the slaves of both Calimport and Memnon. He seeks adventurers to travel to Calimport and incite them to go to war with Memnon, tipping the scales in Almraiven’s favor. A Living Forgotten Realms adventure set in Calimshan for characters of the heroic tier (levels 1-10).