Epistolary Novels, a Thursday Thirteen

Although I had an uneven reading experience with Margaret Forster's Diary of an Ordinary Woman, I have to say I loved the format.  I might not want every book I read to be made up of diary entries or letters, and epistolary novels may have their drawbacks (it's amazing how a letter writer might be able to remember entire conversations, for example), I think when they're done well, they can be great fun to read (not to mention an entirely different way of getting inside a character's head).  Hopefully I'm using the term 'epistolary novel' correctly as a blanket term for diaries and letters.  When I finished with Forster, I thought I would like to read another novel written in the form of a diary.  I started wondering what else I might have on hand, so I scanned my shelves for possibilities.  I thought I might not find many books at all, but I ended up with a nice list (perfect for a Thursday Thirteen).  For once I've actually read nearly all these books (which shows how much I really do like this sort of novel).  If you can think of other epistolary novels, I'd love to get more reading suggestions.  Here's what I came up with:

1. The Moonstone, Wilkie Collins - I loved this book and it's not even my favorite Wilkie Collins novel, partly told through the use of letters
2. 84, Charing Cross Road, Helen Hanff - Delightful isn't a word I use in my everyday conversation, but it fits this book to a 'T' more than any other book I can think of.  You might already be familiar with it--letters exchanged between Hanff and a gentleman working in a second hand bookstore in London.  It takes place during the 1940s.  It's a very bookish novel and highly recommended (all her books are wonderful actually).
3. A Woman of Independent Means, Elizabeth Forsythe Hailey - Once again this is a novel about one woman's long life, but it's told through her letters.  I read it ages ago, so the details are hazy, but I recall enjoying it very much and giving it to friends.
4. Clarissa, Samuel Richardson - Maybe this is the granddaddy of epistolary novels?  I know this form was quite popular in the 18th century.  I have it, will read it someday.  (Though maybe I'll start with the shorter Pamela, which is also an epistolary novel).
5. Lady Susan, Jane Austen - I read this for the Slaves last year.  I liked it, though it is so different than Austen's other work.  Lady Susan wasn't the easiest person to like, as a matter of fact it's quite a jump to Elizabeth Bennet from Lady Susan!
6. Many Lives and Secret Sorrows of Josephine B., Tales of Passion, Tales of Woe and The Last Great Dance on Earth, Sandra Gulland - These are wonderful novels about the life of Josephine--from her birth on Martinique through her life with Napoleon and after.  I wouldn't eve mind rereading them.
7. The Stone Diaries, Carol Shields - This is a recent purchase for me.  I thought it might be fun to compare Daisy Goodwill's life to Millicent King.  Both the Shields book and the Forster are set in about the same period though Shields is a Canadian author and I think the book is also set in the US.
8. Dracula, Bram Stoker - Another wonderful novel made up of letters and diary entries. 
9. Diary of an Ordinary Woman, Margaret Forster - See link above to read my thoughts on this novel.
10. Freedom and Necessity, Steven Brust and Emma Bull - I've not read this yet, but it's one of those books I keep picking up and planning on reading, but then not getting to it.  It was recommended to me when I was looking for books for Carl's fantasy reading challenge last year.  It has a Victorian setting, but there is also fantasy and adventure thrown in as well.  It sounds so intriguing and I've heard all sorts of good things about it.
11. Primrose Past: The 1848 Journal of Young Lady Primrose, Caroline Rose Hunt - I read this ages and ages ago.  It is written in diary format of a young Victorian lady.  I always thought the author would write a sequel, but I never came across anything, which is a pity.
12. Frankenstein, Mary Shelley - Dorothy's recent posts on this novel make me want to read it again.  Another story told through the use of letters.
13. Les Liaisons Dangereuses, Pierre Choderlos de Laclos - I was all set to read this a couple of summers ago, but it didn't come to pass.  The story is told entirely through letters if I've read correctly.  I've seen the movie--a story of love, and seduction and betrayal, but I bet the book is better.

What have I missed?  Plenty, I'm sure!