A lady in a marketplace helps Deckard identify the scale as a snake scale—from an artificial snake manufactured by a dude named Abdul Hassan.
Deckard visits Abdul Hassan, and after an angry confrontation, Hassan directs him to a club owned by a man called Taffey Lewis.
At the club, Deckard has an unhelpful encounter with Lewis and tries to phone Rachael to invite her to the club—but she won't come.
Nevertheless—surprise, surprise—Zhora is present, working as an exotic dancer with her artificial snake as a prop.
After the show, Deckard visits Zhora's dressing room, where she strips down and changes, while he pretends to be a guy working for the Committee on Moral Abuses; he says he's making sure she hasn't been exploited in her job.
But Zhora catches onto Deckard's game and attacks him. He ends up chasing her through the street, finally gunning her down as she crashes through a store's window.