Those who made their awareness check, you notice 2 things
1: Above the woman are two birds, who are watching you, her, and the surrounding areas intently
2: The old woman's cloak is made of metal plates. Initially, you assumed that this was some kind of crude armor - cheap pot metal plates riveted on a thick cloak. But as you approach, you cannot seen the underlying layer, the plates overlap. Also, the plates are incredibly thick - a good half cm (almost a quarter inch) thick. This cloak must weight 200-300 pounds! The greatest warrior would struggle under such a burden, let alone an old woman...
The old woman cackles at the slugman's words "Lovely woman? Clearly the opium smoke has scared your eyes slugman!"
"A place like this - a reminder that the Yellow City is in decline, that the Jungle is winning? It is I who should ask you what you are looking for. Clearly, you did not come here looking for lovely ladies - you wouldn't know them if you saw them." With that, the old woman cackled again.