A propulsive debut suspense novel, filled with secrets, nerve-jangling tension, perplexing mystery, and cold-blooded murder, in which a police officer on the hunt for a macabre serial killer is brutally attacked, and only his partner knows the truth about what happened—and who did it.

After months of hunting a cold-blooded murderer that the press has dubbed the Thorn Killer, Detective Greg Carver is shot in his own home. His trusted partner, Ruth Lake, is alone with him. Yet instead of calling for help, she’s rearranged the crime scene and wiped the room clean of prints.

But Carver isn’t dead.

Awakening in the hospital, Carver has no memory of being shot, but is certain that his assailant is the Thorn Killer.

One person knows the truth and she’s not telling. She’s also now leading the Thorn Killer investigation while Carver recuperates. It doesn’t matter that Carver and the rest of the force are counting on her, and that more victims’ lives at stake. Ruth is keeping a deadly secret, and she’ll cross every line—sacrificing her colleagues, her career, and maybe even her own life—to keep it from surfacing.

Utterly engrossing and filled with masterfully crafted surprises, Splinter in the Blood is a propulsive roller-coaster ride, filled with deception, nerve-jangling tension, perplexing mystery, and cold-blooded murder.


One of the boldest, most inventive serial-killer thrillers since The Silence of the Lambs. Packed with forensic detail, anchored by a protagonist as complicated as she is compelling, this ferocious novel is perfect for fans of Jeffery Deaver and Lisa Gardner.”  AJ Finn, author of NY Times bestseller, The Woman In the Window

“Compelling, clever. Packed with macabre and fascinating forensic details. A stunning debut.”                 Mo Hayder, bestselling author

“A taut and compelling thriller, as sharp as the thorns that feature in the plot.”   Ann Cleeves

[An] enthralling debut…. The skillfully constructed plot complements the intriguing characters, including a deliciously creepy killer who lurks in the background. Dyer is definitely a crime writer to watch.”   Publishers Weekly (starred review)

With complicated leads and a ruthless killer whose method is barbaric enough to be frightening without shading into the grotesque, this is a debut worthy of sequels.”      Kirkus Reviews

[T]his debut spins to a breathless conclusion. Solid suspense fiction by a knowledgeable duo.”   Booklist

“A proper page turner of a read and very well written, giving a fresh feel to proceedings even whilst following the best tropes of the crime thriller.”  Liz Loves Books

“This novel starts off with a bang of a puzzler and keeps surprising all the way through….Very nice start to a new series.”   Deadly Pleasures Mystery Magazine

“This is a series to devour.”  CrimeSquad (Book of the Month April 2018)

“Dyer’s unconventional approach to the story of a serial killer and the detectives who are trying to catch the them is fresh and innovative.”  Murder and Moore

“This is a fascinating story, highly original and filled with complex twists you won’t see coming until they are upon you. Highly recommended.”   Auntie M Writes

“A spellbinding mystery with a fascinating storyline. This gripping debut is sure to be a hit with readers who enjoy well-written British police procedurals.”
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“A tight, deliciously woven plot, multi-faceted and unpredictable characters, beautifully constructed descriptive prose and a tension that builds throughout that is as superb as it is disturbing.”                  Chris High Reviews

“What an interesting approach… Dyer is very good at keeping the reader off balance.”
 Books Are Magic