Blade haired wand on Acheron?

Ooh, I kinda like that idea that The Lady's mask and part of her "shell" is made from Acheronian blade steel (of course, there's still no telling what she might be hiding underneath there-- I'm doubtful that she's even humanoid in her true form, and maybe not corporeal-- e.g. kinda like Pale Night. Or, she could be another wriggling mass of tentacles.)
That would actually be fairly interesting/amusing to have someone manage to attack her with a vorpal blade or somesuch in front of a bunch of witnesses (including the PCs), and after a short pause from her as her mask falls to the ground revealing a lack of flesh/etc. underneath the mask. Then, she smites her assailant in a horribly painful way, before picking her mask back up telekinetically, affixing it back atop her shoulders, then teleporting away. Oh, yeah, her response to the attack is perfectly calm at all times, as if she's saying to the assailant "..... oh... is that it?"
Bonus points if the guy sneaks behind and decapitates her, and then she guts him with one hand without ever turning around. >_> (Oh, and the pause of silence should be for a full sixty seconds, with the Lady's retaliation being incredibly abrupt and swift)