Otter Creek The Darkness Will Rise...

:D I've decided that Nightwing has the ability to use both sets of vocal cords at the same time to create that creepy "possessed by a demon" voice you hear in Exorcism movies. Tibetan Monks, among others, have trained themselves to activate both sets at the same time while singing to make an odd-sounding singing voice. Like this except she's talking, and not AS deep cos she's a girl.

Nightwing swung 'round at the chuff, a growl beginning low in her throat. And in her mind, the Voices had begun once again: WHO ARE YOU, UNWANTED ONE? LEAVE US! She felt herself speaking their words, and heard her own voice, as well as those of the Voices. She didn't know how they did it, but somehow they had always been able to manipulate her vocal cords like that, so that when they wanted to speak to someone on the outside, they could. But it made her voice sound frightening, and often scared off others.

Finally, she got control of her body again and said, "Shut up! You're scaring her!" Then she looked to the black-furred she-wolf before her and said, "Sorry. I hear voices. They... control me sometimes. Make me say things..." She stopped there, having said her piece. She'd found it was easiest to just get the hard things out of the way quickly. That determined whether or not wolves stayed to chat or got up and left while calling her 'crazy'. She could do nothing about the Voices, though. They were a part of her. She'd learned to live with it.