It is $14.99 under iPhone Apps - ebooks - enhanced editions. If you open up iTunes and search on Kim Harrison you will see it listed, not the audio version that is $30+... down the screen a little bit there is a section for enhanced eBooks.
This is a webpage I found about it
http://www.enhanced-editions.com/boo...agic-sanction/
I can't tell you much more than that because I haven't actually bought it.
Oh I just saw on iTunes, there is a 2nd eBook/App that is just the first chapter that you can download for free. I'm going to try it out.