The case of the perilous palace
Jordan Stratford
The case of the perilous palace
Age Rating, Reading Level & Content Guide
by Jordan Stratford
Illustrated by Murphy, Kelly, 1977- illustrator
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.
We may earn a commission from these links. Bookshop.org supports independent bookstores with every purchase.
About This Book
Here’s a secret: a young princess who will grow up to be Queen Victoria has lost her secret diary—a sketchbook filled with coded thoughts no one else is allowed to see. Ada and Mary must sneak into Kensington Palace to find it without anyone noticing, but that’s only the beginning.
Quick Assessment
This middle-grade historical mystery follows Ada Byron Lovelace and Mary Shelley as they solve a secretive case for a young Princess Victoria, who has lost her private sketchbook. The story blends history with light suspense and humor, suitable for ages 9-12, with no intense content. It encourages curiosity about history and problem-solving in a fun, engaging way.
Why we rated The case of the perilous palace 9LE
The case of the perilous palace is written at a Level 4-5 reading level across 183 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, The case of the perilous palace works for readers up to grade 6.5.
We rate The case of the perilous palace as 9LE ("Light — Emotional") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.
No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.
Thematically, The case of the perilous palace explores mystery, friendship, historical, adventure, and coming of age — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
- ✓ Kids drawn to stories about mystery, friendship, historical.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
9LE — Light — EmotionalLight conflict or tension. Mild peril resolved quickly.
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Hook Factor
3/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
3/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
Similar Books
Based on content and theme analysis
The Mystery of the Queen's Jewels
Gertrude Chandler Warner
The Mystery of the Queen's Jewels
Gertrude Chandler Warner
The case of the girl in grey
Jordan Stratford
The case of the girl in grey
Jordan Stratford
The case of the counterfeit criminals
Jordan Stratford
The case of the counterfeit criminals
Jordan Stratford
Victoria, May blossom of Britannia
Anna Kirwan
Victoria, May blossom of Britannia
Anna Kirwan
Mystery of the Painted Dragon
Katherine Woodfine
Mystery of the Painted Dragon
Katherine Woodfine
Danger in the Palace
Debra And James Macdonald Doyle
Danger in the Palace
Debra And James Macdonald Doyle
Details
Book Length
- ISBN
- 9780553536447
- Pages
- 183
- Publisher
- Knopf Books for Young Readers
- Published
- 2018
- Type
- Fiction