The Mystery of Hidden valley

Are you up for a thrilling adventure?

While camping in Wales, it doesn’t take long for the Mystery Kids to stumble across a long-lost tunnel that leads to a valley full of secrets.

Follow the children as they are imprisoned in an old farmhouse, discover a hidden cave, sabotage a plane, rescue a missing man, undertake a perilous climb, and more!

Book 3 in the Mystery Series, this adventure novel is set in 1950’s Britain and will suit anyone who enjoys Nancy Drew, the Hardy Boys or the Famous Five.


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Austin Haynes


Virginia Larson

Product Management

“My kids are really enjoying me reading these to them at bedtime. They are fun stories.”


“Once again Mr. Moxham writes a crackerjack of a mystery for kids! I think the thing I’ve liked most about this series is how caring the kids are, both to each other and to people they meet.”


“This was the best book about kids I have ever read.It was very good and exciting. I laughed and at times held my breath. It was a wonderful experience.”