Cover of The Oak Creek Trio and The Playground Map
Case #5 β€’ Book 5

The Playground Map

Ages 6–9 7 Chapters Live on Amazon

With Oak Creek's old playground scheduled for demolition, the trio discovers a faded hand-drawn map hidden inside the play structure. An X in the sandbox and a mysterious rhyme lead to a decades-old secret that must be solved before the bulldozers arrive.

About This Mystery

Open the case

The trio's fifth School Mystery begins with a loose board, an old map, and a message about 'a key to what I couldn't say.' Maya designs a Sand Sifter, Leo searches old records, and Max digs through clues as the countdown to demolition ticks away. The Playground Map brings together the history established in earlier cases and rewards returning readers with a mystery about friendship, memory, and the things people leave behind.

Keep investigating

Every Oak Creek Trio book unlocks more reader activities. Book 1 starts with a parent email; later books use the Detective Code found at the end of the book.