A high-stakes British crime thriller where a protected witness vanishes and the detective hunting her is already being tracked.In South Manchester, duty does not take days off.Days before his wedding, DCI Rick Castle is pulled into the one case he cannot refuse-finding a missing protected witness who could finally bring down an untouchable Mancunian crime lord.The trail leads him to the desolate Scottish Highlands and explodes into violence and conspiracy, revealing a suspected leak within the police. Cut off from support, and fearful he's being watched, Rick pushes on.But the closer Rick gets to the witness, the closer his family gets to danger, turning his obsessive investigation into a fight he cannot walk away from-and a battle for survival he may not win.If the case does not break him, they will go after the one thing that will.Rule of Threes is Book 5 in the DCI Castle series. Perfect for readers who love British police procedurals, relentless detectives, and gritty, high-stakes crime thrillers.___________________________________________________________________Praise for the DCI Castle series:? ? ? ? ? Richly drawn characters. in a world of moral shades of grey.? ? ? ? ? I felt like I was there, on the streets, in every room.? ? ? ? ? A gripping crime novel. with complex characters and a story that keeps you hooked.? ? ? ? ? A fresh take on the crime genre.? ? ? ? ? Not many writers create a detective with vulnerabilities beyond the usual cop tropes.

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Bibliographic Details

Title: The Rule of Threes
Publisher: Vinci Books, GB
Publication Date: 2026
Language: English
ISBN 10: 1036712125
ISBN 13: 9781036712129
Binding: Paperback
Condition: New

About this title

Synopsis

A high-stakes British crime thriller where a protected witness vanishes and the detective hunting her is already being tracked.

In South Manchester, duty does not take days off.

Days before his wedding, DCI Rick Castle is pulled into the one case he cannot refuse―finding a missing protected witness who could finally bring down an untouchable Mancunian crime lord.

The trail leads him to the desolate Scottish Highlands and explodes into violence and conspiracy, revealing a suspected leak within the police. Cut off from support, and fearful he's being watched, Rick pushes on.

But the closer Rick gets to the witness, the closer his family gets to danger, turning his obsessive investigation into a fight he cannot walk away from―and a battle for survival he may not win.

If the case does not break him, they will go after the one thing that will.

Rule of Threes is Book 5 in the DCI Castle series. Perfect for readers who love British police procedurals, relentless detectives, and gritty, high-stakes crime thrillers.

___________________________________________________________________

Praise for the DCI Castle series:

★ ★ ★ ★ ★ Richly drawn characters… in a world of moral shades of grey.

★ ★ ★ ★ ★ I felt like I was there, on the streets, in every room.

★ ★ ★ ★ ★ A gripping crime novel… with complex characters and a story that keeps you hooked.

★ ★ ★ ★ ★ A fresh take on the crime genre.

★ ★ ★ ★ ★ Not many writers create a detective with vulnerabilities beyond the usual cop tropes.

About the Author

James Ellson was a police officer in the UK for 15 years, starting in London and finishing as a Detective Inspector at Moss Side in Manchester. When he left the police he started writing, and has been writing ever since. James’s debut novel The Trail was published in 2020, and the sequel Cold Dawn in 2022. Cold Summer will be published in November 2023. He also writes short stories, and was runner up in the 2021 Bay Tales Christmas short story competition with Roisin's Christmas Party. His story The Translator was published in a 2022 anthology (To Serve, Protect, and Write) of former police officers, now writers. James is a keen climber and mountaineer, and has visited Nepal many times. In 2004 he climbed 6,812 metre Ama Dablam, and in 2008 soloed the Matterhorn. He lives in the Peak District with his wife, and manages their smallholding, which includes bees and an orchard. James can be followed on Twitter @jamesellson3 And on Facebook: james.ellson.98

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