book cover of The Shadow Killer
 

The Shadow Killer

(2025)
(The fifth book in the DI Ziggy Thornes series)
A novel by

 
 
How Deep Can You Go Into A Killer's Mind
Before You Lose Your Own?


Dr. Evelyn Shaw is a celebrated forensic psychologist, known for her ability to uncover the minds of the most dangerous criminals. But when she is asked to profile James Hawthorne, a cunning and manipulative serial killer, she finds herself drawn into a psychological battle unlike any she has faced before.

James is no ordinary murderer. He reveals unsettling details about his crimes—and Evelyn’s past. As their sessions progress, Evelyn’s carefully constructed life begins to unravel. Long-buried childhood traumas resurface: a domineering father, a mother’s mysterious death, and a brother she couldn’t save. James’s eerie knowledge of her darkest memories forces her to question whether he is manipulating her or if her mind is betraying her.

As Detective Inspector Ziggy Thornes races to uncover the truth behind James’s crimes, Evelyn becomes increasingly isolated. The line between victim and accomplice blurs when James escapes and Evelyn flees to her childhood home to confront the truth.

In a chilling finale, Evelyn must face her darkest fears and unravel her own connection to James’s crimes.
The Shadow Killer is a gripping psychological thriller that explores the thin line between sanity and madness, manipulation and truth, leaving readers questioning where darkness truly begins.

REVIEWS FOR THE SHADOW KILLER
"Dark, Gripping, and Utterly Unforgettable. The Shadow Killer is a psychological thriller that digs deep into the human psyche and doesn’t let go. Dr. Evelyn Shaw is a brilliantly complex protagonist whose descent into the mind of a serial killer is both chilling and emotionally intense. As she unravels James Hawthorne’s twisted motives, the real tension lies in how much of herself she risks losing along the way.

The story masterfully blurs the line between hunter and hunted, sanity and madness. Every session between Evelyn and James crackles with psychological tension, and the slow unraveling of Evelyn’s own past adds a haunting depth. The final twist is both shocking and satisfying, tying together layers of trauma, guilt, and truth.

This is not just a thriller, it’s a dark, cerebral journey into the fragile nature of identity. Perfect for fans of The Silent Patient or Mindhunter."


"The themes are dark and twisted, which I loved, the action is gripping and thrilling, and I absolutely devoured this book.
Another top notch 5 star book from this author!"

"As with all Catherine’s other books I was totally hooked, the dark, twisted mind of the serial killer had me on the edge of my seat. There was lots of twists, turns and rollercoaster rides. Well done Catherine, another brilliant book."

"Wow! I was blown away with the intricacies of this book. So many facets to this thriller. If you like psychological thrillers, you’ll love this book."





Genre: Mystery

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