There was an interesting, if rather odd, piece about THE NINE TAILORS on the "You Must Read This" segment on NPR's All Things Considered recently. You can read and/or listen to the story here: http://www.npr.org/templates/story/story.php?storyId=17618908.
I disagree with Jonathan Hayes both about his description ("brutal"??) and his assessment (not her best) but certainly agree with him that (like all Sayers) "it's a far richer read than anything by Agatha Christie." Although I may enjoy the quartet of books in which Lord Peter meets and marries the unconventional Harriet Vane more, I think THE NINE TAILORS may indeed be Sayers' best book, featuring not only her always-eloquent prose and charming dialogue, but the intriguing bell-ringing theme beautifully underpinning the plot and giving it a special, well, resonance.