A. J. Bolster – Children’s Mystery Author

I’m A. J. Bolster, a Nottinghamshire-based children’s author who creates heart-warming mystery adventures for curious young readers.

Through my series The Snoops Schoolyard Mysteries, I invite children to explore friendship, teamwork and problem-solving, with plenty of clues, laughter and surprises along the way.

When I’m not plotting my next twist, I enjoy time with my family and my grandson, Reuben, who inspires many of my stories and imaginative ideas.

When I’m not plotting my next twist, I enjoy time with my family and my grandson, Reuben, who inspires many of my stories and imaginative ideas.

You’ll often find me notebook in hand, dreaming up the next adventure for Katie, Ben and Ella — the three friends who started it all in The Snoops and the Hidden Switch.

A J Bolster – children’s mystery author and creator of The Snoops series

What I Write

Heart-warming mystery adventures for readers aged 8–12

Schoolyard sleuths, clever clues, and laugh-out-loud moments

Stories that spark curiosity, friendship, and fun

A J Bolster - Children's Mystery Author
A J Bolster – Children’s Mystery Author
The story of

A J Bolster – Children’s Mystery Author

I’ve always believed that curiosity is the spark behind every great adventure — and that’s exactly what inspires my stories. Through The Snoops series, I love creating tales that celebrate teamwork, friendship, and the thrill of uncovering hidden clues.

My writing journey began in Nottinghamshire, where I still live today. Surrounded by notebooks, books, and plenty of coffee, I write stories for readers who love to ask “what if?” and “why not?”.

When I’m not writing, I enjoy visiting schools and bookshops to talk about storytelling, imagination, and how everyday mysteries can become the start of a new adventure.

Every book is designed to encourage problem-solving, creativity, and confidence — whether it’s in the classroom or curled up at home.

Perfect for readers who love solving clues and uncovering secrets
Encourages confidence, curiosity, and creative thinking
Written to bring mystery, friendship, and fun to every page
From thrilling schoolyard mysteries to a free prequel adventure — available in paperback, ebook, audiobook, and hardback.

Books and Editions Published

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The Snoops and the Hidden Switch — the mystery that began the adventure.

Most Popular Title

Storyline

2018

The first spark for The Snoops idea was born — inspired by Reuben’s boundless curiosity and schoolyard adventures.

2019


Began writing The Snoops and the Hidden Switch, building a world of friendship, puzzles, and mystery.

2021


Completed the manuscript and began learning indie publishing — from formatting to cover design.

2023

Built the A. J. Bolster author brand—website, newsletter, and early ARC reader team (plus cover design and final edits).

2025

The Snoops and the Hidden Switch launched in paperback, eBook, audiobook, and hardback—reaching classrooms and libraries across the UK.

2026

Launching Series 2 of The Snoops Mysteries and The Sigil Trilogy—a young adult fantasy adventure series.

Best selling books

Step into the world of The Snoops — a bestselling mystery series where friendship, curiosity, and courage take centre stage. Follow Katie, Ben, and Ella as they uncover secrets hidden in everyday places — from mysterious switches and phantom postboxes to midnight adventures and puzzling clues.

Featuring The Snoops and the Hidden Switch, The Phantom Postbox, and The Midnight Compass, these heart-warming schoolyard mysteries have captured the imaginations of young readers, parents, and teachers alike.
And the adventure doesn’t stop there — Series 2 of The Snoops Mystery Adventures launches soon, alongside The Sigil Trilogy, a brand-new fantasy adventure for older readers.

Book Cover 1

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Book Cover 2

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