From the back cover:
"The discovery of an evil cult in the City of Greyhawk has caused city officials to seek assistance in wiping out this new menace. Their greatest worry? The cult's leader has disappeared, and officials fear that she is simply gathering strength for her ultimate assault on the city.
Can your adventuring party find the cult's leader and put a stop to her plans before she puts a stop to you?
Falconmaster is the second of a three-part series of adventures for the ADVANCED DUNGEONS & DRAGONS 2nd Edition role-playing game that began with Falcon's Revenge. It can also be played as a stand-alone module. Set in the famed City of Greyhawk, it gives adventurers a taste of life in the big city - with someone or something brewing trouble.
Falconmaster is designed for five to seven characters of levels 5 to 7."