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Publication Order of Her Majesty Investigates Books
| Death at Buckingham Palace | (1996) | Hardcover  Paperback  Kindle |
| Death at Sandringham House | (1996) | Hardcover  Paperback  Kindle |
| Death at Windsor Castle | (1998) | Hardcover  Paperback  Kindle |
Publication Order of Father Christmas Mystery Books
| Twelve Drummers Drumming | (2011) | Hardcover  Paperback  Kindle |
| Eleven Pipers Piping | (2012) | Hardcover  Paperback  Kindle |
| Ten Lords A-Leaping | (2013) | Hardcover  Paperback  Kindle |
| The Unpleasantness at the Battle of Thornford | (2020) | Hardcover  Paperback  Kindle |
Publication Order of Standalone Novels
| Death in Cold Type | (2005) | Hardcover  Paperback  Kindle |
| Paul Is Dead | (2018) | Hardcover  Paperback  Kindle |
Publication Order of Non-Fiction Books