Tiara Friends Books in Order
Part ofPaula Harrison Books in OrderFind the Tiara Friends books by Paula Harrison in order, with short summaries, palace mystery background, and help picking a good place to start.
Last updated: June 8, 2026
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Publication Order
4 books
The Case of the Stolen Crown
by Paula Harrison
2017
Millie is a princess, Jess is a maid, and the two best friends look almost exactly alike. When a diamond crown vanishes before a royal birthday party, their lookalike trick helps them chase the truth.
The Hunt for Hidden Treasure
by Paula Harrison
2017
When a priceless painting is stolen, Millie and Jess know there is more going on than a simple theft. Their hunt for answers becomes a neat palace mystery with secrets tucked behind the obvious clue.
The Mystery of the Lake Monster
by Paula Harrison
2017
A strange monster appears on the lake in the middle of the night, and everyone at Peveril Palace starts whispering. Millie and Jess follow the clues to find out what the creature really is and who wants the scare.
The Secret of the Silk Dress
by Paula Harrison
2017
Millie's snooty cousins bring trouble to Peveril Palace, and soon a beautiful silk dress disappears. Millie and Jess race to solve the mystery before the wrong person is blamed.
Series background & context
Tiara Friends has one of Paula Harrison's gentlest and smartest setups. Millie is a princess, Jess is a maid, and the two girls look so much alike that they can swap places without anyone noticing. That gives the series its spark straight away. One girl gets a break from royal duties, the other gets to step into palace life, and together they find mysteries to solve around Peveril Palace.
The stories stay close to the everyday workings of the palace, which is part of their charm. Instead of huge magical battles, you get missing crowns, vanished dresses, strange shapes on the lake at night, and stolen works of art. The scale is smaller, but the stakes still feel real because the girls care about fairness, getting the truth right, and stopping the wrong person from taking the blame.
These are palace mysteries with a playful twist.
Millie and Jess work well as a pair because they bring different kinds of knowledge. Millie understands the rules, expectations, and awkward parts of royal life. Jess notices practical details and sees spaces and people from a different angle. Their lookalike trick lets them move between upstairs and downstairs worlds, which gives the mysteries a light detective feel without making anything too complicated for newer chapter-book readers.
There is also a warm friendship story running through the whole series. The girls enjoy the fun of dressing up and changing places, but the books are really about trust. If one of them is in trouble, the other steps in. If there is a puzzle, they solve it together. That steady partnership makes the series especially welcoming for readers who want confidence-building mysteries with clear plots and familiar characters.
Expect short chapters, bright settings, and puzzles that feel satisfying rather than scary. The palace backdrop adds dresses, parties, and secret corridors, but the heart of the series is always the friendship between two girls who know each other's worlds from the inside. For readers who like princess stories but want clues as much as crowns, Tiara Friends is a very easy recommendation.
Edited by
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