Traveling to Alhaster, you find she is unavailable, but will be at an invitation only party thrown by Prince Zeech. This is the best chance to get an audience with her, possibly the last person to talk to trevor's father Balakarde nearly a decade before.
The owner of an entertainment establishment has a number of invitations, but you must convince him first that you are worthy and interesting enough to earn the invitation. After telling stories of your deeds you get the invitations you need.
However during the passing of the week of time before the party you acquire a rival that you meet again at the party, clear out the remaining cultists of the Ebon Triad in town (the rest of the cult you encountered early on), and locate the lair of the black dragon Ilthane the black (From the lizardman lair and most recently killed at the Whispering Cairn) and you finish off the last of her brood. (and gain all of her loot).
Finally the party begins and you find yourself among the rich and powerful, some friendly, some not, including Raknian and the hobgoblin rival you ran into in town. However you must walk a fine line here as Zeech is unstable and you must avoid offending him. Making some allies here can help later in the story. After a number of various disturbing events that you struggle to tolerate, Lashonna arrives and the feast begins.
The feast is a multi course one which is disgusting and disturbing. The first is the feast of worms, grubs that look, but are not, like Kyuss worms. Zeech's bard tells a tale. The second course is a 24 blackbird pie which the bard sings a song. The third course is fantasy's version of a turducken, which is a tojanida, stuffed with basilisk steaks, stuffed with arrowhawk breasts, in turn stuffed with stirges.(Tojbassarrirge). The course if horrible, but you must try and not offend the prince who invented the "delicacy". The fourth course is a purple worm aspic followed up with a bragging contest. Last course is a sweet cake in the shape of a massive project that Zeech is having built, and it falls apart, but the bard swoops in and convinces the prince not to slaughter his cooking staff.
Finally there is a dance where partners are constantly switching which Raknian uses to taunt you once more while in safety.
Finally you get to talk with Lashonna about Balakarde, or at least you do as soon as the party ends and you can get to her place.