Is there a problem with a post being answered twice? I can't think of any harm caused.

Did Semirhage disguise her physical appearance at all when she was with Tuon?

I'm pretty sure she didn't because when her tuon disguise was disrupted i'm pretty sure that the sul'dam said that she was anath didn't they? If she was in disguise when she was pretending to be anath then the sul'dam wouldn't have recognised her true form. Can someone back me up on this, I don't have my copy of the book handy and sometimes my mind makes things up.