After a quick and decisive victory against Varth and his Golem, our heroes ascend the cellars and emerge into the great prison complex, where they meet the warden, Arwyl Swan’s Son. After a quick explanation of their predicament, they are released into the streets of Sigil, where they re-supply and purchase new goodies.
Now on the hunt for information about the slain demilich and his long lost tomb, the heroes visit the Lord of Bones, and present to him the skull of the slain Acererak Construct. In trade he tells them of the legendary Skull City, and the Black Academy that ruled there.
As fate would have it, Old Lothar recently sold a portal key to the city to another adventurer, a hard headed tiefling who herself was seeking the city for her own reasons.
Dissatisfied with the trade he made with her, Lothar slips our heroes the information on how to find this woman, who resides in the Hive Quarter of Sigil.