The Fair Lady

Call me curious, but if you have the Witch's ring and not Queelag's soul will the Fair Lady still identify you as her sister? I'd find that a little odd, but perhaps if you removed all traces of Queelag then would she address you differently?

It's not connected to Quelaag's Soul, I don't think. I believe she just takes you for Quelaag because you can speak the language of the old witches of Izalith (when you wear the Old Witch's Ring), so she just assumes it's Quelaag she is talking to.

Well it can't be spoken...cause I have a male character. I also doubt my guy sounds anything like Queelag or if its telepathy then does our character just know how to speak to others with his mind?

The ring turns you into a girl, so your toon is just a really ugly lookin girl now.

Well remember that the blightpus made her blind and probably either immobile or near so (I know she protects the fire but so does the brass lady and she demonstrates that leaving is possible and not a big deal if motivated). Anyway, what else is affected? Hearing? Memory? Does she even trust any of her five senses? Maybe all she trusts is her heart and the presence of others. Even though she can't understand your speech without the ring she understands you enough to let you join the covenant. The ring allows language to be understood and everything else she needs to know is that she feels her sister nearby. Either the ring has that much left of quelaag or you absorbing her souls (not the special one) or both is enough for her to feel it.

Yeah, basically you have no idea what goes on in that *****'s head. The ring lets you understand her, and she thinks you're Quelaag. That's it. It could be the ring's presence that makes her think it's Quelaag, it could be her souls/soul...hell, maybe Quelaan is really just only used to speaking to Quelaag, even. It could be anything.