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Jump on board with Detective Chief Inspector Paul Cullen in his latest gripping mystery…

When Detective Paul Cullen is tasked with heading up security on the maiden voyage of a new luxury sleeper train heading to Scotland, he thinks his luck is in.

But it soon becomes apparent that there are dark secrets and even darker intentions among the train’s high-profile passengers.

Deadly intentions.



Deep Sleeper is the fourth novel in the Detective Paul Cullen mystery series.

268 pages, Kindle Edition

Published December 1, 2022

58 people are currently reading
41 people want to read

About the author

Paul Pilkington

18 books254 followers
Paul Pilkington is a British author of mystery, suspense and thriller novels.

He is best known for his Emma Holden Suspense Mystery series, which follows the story of a young actress named Emma Holden who is thrown into a world of danger and intrigue after the sudden disappearance of her boyfriend. The three novels of the trilogy - The One You Love, The One You Fear, and The One You Trust - have gained thousands of five star reviews worldwide.

Pilkington has also written several best-selling standalone novels, including For Your Own Protection and the Kindle Number One Someone to Save You.

His highly rated Detective Paul Cullen mystery series, featuring a dedicated and determined british transport police detective, is currently at Book 4.

Paul's new novel, You Must Remember Everything, is a psychological thriller about a woman who wakes up in a sealed room, unable to remember who she is or how she got there. To escape, she must face her darkest memories and fears.

Paul Pilkington's writing style is fast-paced, suspenseful, and character-driven. His novels explore the most human of themes and issues, such as love, loss, family, and redemption, in a way that keeps those pages turning.

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5 stars
166 (53%)
4 stars
100 (32%)
3 stars
36 (11%)
2 stars
4 (1%)
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3 (<1%)
Displaying 1 - 4 of 4 reviews
10 reviews
March 2, 2024
Good read

This book was different from most books I read . I almost put it away after the beginning but I’ glad I finished reading . It turned out quite interesting and surprising . Well written.
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643 reviews8 followers
July 18, 2023
Well worth the long wait for this book. Very exciting story of a billionaire who invited people he had wronged onto his luxury sleeper train from London to Scotland.
348 reviews3 followers
July 25, 2024
This one let me down, started off interesting , had some mystery and intrigue then failed to pull it together. Was just ok- nothing special
3 reviews
July 23, 2023
Nail biting

This was another amazing book, We were kept in suspense from start to finish, thank you and I can’t wait for the next one
Displaying 1 - 4 of 4 reviews

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