Definitely on keeper shelf!
This is my favorite story in the Wallflower series. It's the only one that I hunted, found and bought a hardcover version of the book. The interaction between H/H is just wonderful. Both of them started off rather unlikely heroes for a story, since he was such a scoundrel and she was truly a "wallflower". But their development and growing together and individually into themselves was wonderful to read. I absolutely love this story!!