| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Lady Whistledown Strikes Back | 978-0-06-057748-3 (0-06-057748-7) | 2004 | Julia Quinn · Karen Hawkins · Suzanne Enoch |
| The Duchess Diaries | 978-0-06-051969-8 (0-06-051969-X) | 2003 | |
| The Further Observations of Lady Whistledown | 978-0-06-051150-0 (0-06-051150-8) | 2003 | Julia Quinn · Suzanne Enoch · Karen Hawkins |