Sounds good! I've never read any of Rice's vampire books, but at least one of my kids is a fan, and we've talked about this writer's recent interest in Christianity. Since my daughter is also a Christian who's serious about her faith, and is familiar with the author's other work, I'm sure she'll pick up a copy of this, if she hasn't already.
Interestingly, an author I've been reading a lot of lately, N.T. Wright, came out with a new book last week, called "Simply Christian - Why Christinity Makes Sense". Among the endorsements on the back cover is one by Anne Rice:
"'Simply Christian' goes beyond C.S. Lewis' great classic 'Mere Christianity'. N.T. Wright is simply crucial; his writing can transform one's life. This will become a classic."