The Lighthouse Puzzle
Grade 4 · Chapter book
The Lighthouse Puzzle
Written and illustrated by PlayOwl
The keeper's logbook says six brass plates. The tower stair has five. Cousins Zadie and Finn have until Saturday to find out why.
- 20 pages
- 2,959 words
- Long read
For grown-ups: what this book practices, and where it comes from
What this book practices
An original fair-play mystery in five chapters. Two cousins compare an old logbook, a map and the numbered plates on a lighthouse stair. Every clue is on the page, so a reader can solve it with them. Practices noticing details, number patterns and reasoning from evidence.
- Level
- Chapter book: Five short chapters, about 150 words on a page
- Themes
- Mystery, Family, Adventure
- After the story
- A short activity checks understanding, then a prompt to tell a grown-up about the book.
Levels are PlayOwl's own design guidelines for each grade, not a certified reading level. In I'll Read, PlayOwl records that a child turned every page; it cannot hear whether the words were read.
Credit and rights
Written and illustrated by PlayOwl.
- Cover
- Drawn in code for PlayOwl in 2026 with the Read with Olly illustration kit. An original design. Original work owned by PlayOwl.
- Illustrations
- Drawn in code for PlayOwl in 2026 with the Read with Olly illustration kit, from the picture briefs in this file (an invented lighthouse, Kettle Cove Light, its headland and its stair). Original designs. Original work owned by PlayOwl.
- Narration
- Spoken by the reader's own device voice. PlayOwl ships no recording. No recorded work exists.
- Text
- Written for PlayOwl in 2026. An original story; the characters, the places and every sentence are new. Original work owned by PlayOwl.
