I'm sure you have heard of Pride and Prejudice and Zombies by Jane Austen and Seth Grahame-Smith
Then came Sense and Sensibility and Sea Monsters by Jane Austen and Ben H. Winters
And now there is a tidal wave of classic literature meets the paranormal:
Mansfield Park and Mummies by Jane Austen and Vera Nazarian
Emma and the Vampires by Jane Austen and Wayne Josephson
Emma and the Werewolves by Jane Austen and Adam Rann
Jane Slayre by Charlotte Bronte and Sherri Browning Erwin
Little Vampire Women by Louisa May Alcott and Lynn Messina
Little Women and Werewolves by Louisa May Alcott and Porter Grand
Romeo and Juliet and Vampires by William Shakespeare and Claudia Gabel
I read Pride and Prejudice and Zombies a couple years ago. I bought it because my husband loves zombies and I love Jane Austen, and I believed it was the perfect union of our obsessions. It made me laugh.
But then I read it. The title and cover were more clever than the execution. It was 75% Jane Austen's book and 25% zombies woven throughout. Really, the zombie mayhem became redundant because the only plot driving it forward was the plot that we all know and love.
But the worst of it - I felt like a friend had returned after a long vacation tatooed all over so that I could hardly recognize her under all that ink. Yes, Mr. Grahame-Smith, what did you do to my friend?! Those that do not read Jane Austen will pick this up and become acquainted with what isn't really her.
It makes me sad. If Pride and Prejudice was a religion, I'd call it irreverant. There is a difference between fanfiction and taking the actual text and warping it into something it was never meant to be.
Now, these books are very popular, so I probably don't share my opinion with too many. I am sure that in the end, the real classic will outlive these "fake" classics. However, if someone goes and gives Marilla a taste for blood or sticks a merman fin on Gilbert (DON'T get any ideas), they will pay. Yes, they will pay.
(Next day: Please be sure to read Vera Nazarian's kind response in the comment section.)