This is definitely intriguing. I'm wondering why the sorcerer kidnapped her and what he wants with her--does he just want to kill her? Seems like it might be something more. Consider adding that, but I think it works pretty well as it stands. :)
This is a story I would want to read as I like paranormal fantasy. :-) As Steph said above, I'm wondering why the sorcerer did the kidnapping as well, and did he do the spell that separated her? I'm sure its all in the story and my interest is definitely piqued. Great job!
I would read this, and I completely agree with the above comments. I would also change to 'at the sorcerer's hands' so that it doesn't sound like 'her other half' is a male partner.