Hey Hey We're The Bugbears!
Okay, Stanislaus makes a call and tells his secretary to get the bugbears and dust of disappearance ready for you guys at the entrance to his tower.
As far as Stanislaus knows, Greetles is back working for Vrill.
Marivhon, Stanislaus doesn't have a potion of change self handy, but your question gives him another idea. He'll cast an illusion to disguise you as you move through town. "Be careful though... in two hours, the spell will be over, and you'll be revealed for who you are."
He casts a spell and turns you all into bugbears!
In there's nothing else, you take your leave and head back down. "Just press 0E on the keypad." At the entrance are four other bugbears: Pedro, Chulo, Eduardo, and Tony. Tony gives you the dust of disappearance, Cinder.
You're wondering if wandering through Grito as 8 bugbears is really a good disguise though.