[Home](https://jerntonkoi.com/) · [Find a story](https://jerntonkoi.com/books/) · [Treggan Bay Mysteries](https://jerntonkoi.com/books/#shelf-tbm) · [Secret of the Stone](https://jerntonkoi.com/books/secret-of-the-stone/) ![Secret of the Stone · English](https://jerntonkoi.com/assets/covers/tbm6-en-GB.jpg) Treggan Bay Mysteries · Book 6 # Secret of the Stone Four men died beneath the hill. Forty years later, something starts knocking. Planned for early December 2026 [Reading options](https://jerntonkoi.com/books/secret-of-the-stone/#reading-options) New to this series? Begin with Murder in Treggan Bay. [Murder in Treggan Bay](https://jerntonkoi.com/books/murder-in-treggan-bay/) ## About the story December 1996. A frightened teacher arrives at Drift Café with blood on her face and a warning from the Whealings. Four quarrymen were buried nearby in 1956, their bodies never recovered. Now bread is being left among the stones, walkers are being injured and visitors are gathering to hear the knocking. Noah Yalland follows old maps, altered paths and contradictory memories into the hill’s dangerous history. The sixth Treggan Bay mystery brings winter folklore and a very human puzzle to Noah and Leo’s doorstep. ### What to expect Clues, village loyalties and Noah and Leo’s continuing relationship. ### Ending and reading order A complete mystery; continuing characters. **Content notes** - Past violence and concealed harm - Physical danger and injury - Death and grief ## Reading options Availability varies by country. A retailer link for this edition is not available on this page yet. **Choose a format** ## In reading order - 1 [Murder in Treggan Bay](https://jerntonkoi.com/books/murder-in-treggan-bay/) - 2 [The Watchman’s Secret](https://jerntonkoi.com/books/the-watchman-s-secret/) - 3 [Murder at Torre Manor](https://jerntonkoi.com/books/murder-at-torre-manor/) - 4 [Mermaid’s Fury](https://jerntonkoi.com/books/mermaids-fury/) - 5 [Death by Clotted Cream](https://jerntonkoi.com/books/death-by-clotted-cream/) - 6 Secret of the StoneYou are here Planned for early December 2026 - 7 [The Murder of Blue Six](https://jerntonkoi.com/books/the-murder-of-blue-six/) Planned for early 2027 ## Read next ### [The Murder of Blue Six](https://jerntonkoi.com/books/the-murder-of-blue-six/) Six teams. One missing swimmer. A celebration cut short. Planned for early 2027 ## Questions about this book **Which language is this edition?** English · Secret of the Stone **Where should I start?** Book 6 · Treggan Bay Mysteries. New to this series? Begin with [Murder in Treggan Bay](https://jerntonkoi.com/books/murder-in-treggan-bay/) . ## For a different mood [ ![The Three of Us · English](https://jerntonkoi.com/assets/covers/three-en-GB.jpg) ](https://jerntonkoi.com/books/the-three-of-us/) University coming of age ### [The Three of Us](https://jerntonkoi.com/books/the-three-of-us/) For a gentler story of friendship. Hopeful; a complete story. [ ![The Gravedigger’s Handbook · English](https://jerntonkoi.com/assets/covers/grave-en-GB.jpg) ](https://jerntonkoi.com/books/the-gravediggers-handbook/) A quiet Gothic love story ### [The Gravedigger’s Handbook](https://jerntonkoi.com/books/the-gravediggers-handbook/) For quiet atmosphere, love and grief. Bittersweet; a complete story. [ ![The Boy with the Crow · English](https://jerntonkoi.com/assets/covers/crow-en-GB.jpg) ](https://jerntonkoi.com/books/the-boy-with-the-crow/) Dark psychological crime ### [The Boy with the Crow](https://jerntonkoi.com/books/the-boy-with-the-crow/) For another crime series, with much darker themes. Continues in the next volume. **Also by Jern Tonkoi** ### Treggan Bay Mysteries - [Murder in Treggan Bay](https://jerntonkoi.com/books/murder-in-treggan-bay/) - [The Watchman’s Secret](https://jerntonkoi.com/books/the-watchman-s-secret/) - [Murder at Torre Manor](https://jerntonkoi.com/books/murder-at-torre-manor/) - [Mermaid’s Fury](https://jerntonkoi.com/books/mermaids-fury/) - [Death by Clotted Cream](https://jerntonkoi.com/books/death-by-clotted-cream/) - [The Murder of Blue Six](https://jerntonkoi.com/books/the-murder-of-blue-six/) ### University coming of age - [The Three of Us](https://jerntonkoi.com/books/the-three-of-us/) ### A quiet Gothic love story - [The Gravedigger’s Handbook](https://jerntonkoi.com/books/the-gravediggers-handbook/) ### Memento Mori - [The Boy with the Crow](https://jerntonkoi.com/books/the-boy-with-the-crow/) - [Judas and the Ghost](https://jerntonkoi.com/books/judas-and-the-ghost/) - [The Boy the Wolves Took](https://jerntonkoi.com/books/the-boy-the-wolves-took/) ### A love across decades - [Lanta: Another Life](https://jerntonkoi.com/books/lanta/) ### The Tobias & Stuart Trilogy - [The Day Music Died](https://jerntonkoi.com/books/the-day-music-died/) - [In the Shadow of Death](https://jerntonkoi.com/books/in-the-shadow-of-death/) - [The Curse of Time](https://jerntonkoi.com/books/the-curse-of-time/) ### Metastable - [Metastable: Book One of Two](https://jerntonkoi.com/books/metastable-book-1/) - [Metastable: Book Two of Two](https://jerntonkoi.com/books/metastable-book-2/) Canonical: https://jerntonkoi.com/books/secret-of-the-stone/