Found on the web today:

Anne Rice answers critics on Amazon.com who wrote negative reviews about her last book. Here's a link to roughly the right page of reader-reviews. If the link doesn't work, look for "Blood Canticle" and skim through the reviews till you find a long one that says it's by Anne Obrien Rice from New Orleans.

Amazingly enough, her official website confirms that it really is her who wrote it. Here's a link to the confirmation so you can see I'm not making it up.