The Dryslwyn Castle Killings

He’s inside her home.

Successful novelist Mia is being stalked. Photos of her and her four-year-old daughter arrive in untraceable emails that demand Mia perform various tasks or else . . . Terrified, Mia tries to escape, but the killer follows her all the way to Italy. In desperation, she returns home, but nowhere is safe.

Meanwhile, DI Gravel is investigating the murder of three women. The detective’s last case pushed him to new extremes. Now with his health failing and his career at an end, what lengths will Gravel go to in order to catch a vicious killer?

Once you’ve crossed the line, can you ever turn back?

The fourth book in the dark, edge-of-your-seat Carmarthen Crime thriller series set in the stunning West Wales countryside. If you enjoyed The Housemaid, The Girl on the Train, and The Couple at No.9 then you'll want to read John Nicholl's series.

Praise for John Nicholl:

‘A dark, gritty, and compulsive read’ Daily Express

'The chill is tangible' Owen Mullen

'A frightening book that lures us into the darkness where monsters live. John Nicholl's knowledge of this world from his years of police work makes his characters ring true' Billy Hayes

‘An outstanding piece of work by a truly masterful storyteller’ Anita Waller

'Dark and disturbing. One to really get your pulse racing. This is a story you won't forget' Ross Greenwood

‘The hairs on the back of my neck are still up!… Makes your skin quiver… I was well and truly hooked… The twist had my mouth dropping and rereading twice!’ ⭐⭐⭐⭐⭐ Reader Review

‘Absolutely addictive and gripping. I seriously WOULD NOT even start this book unless you have cleared your schedule because you will not be able to put it down!!! I absolutely blew through it in one sitting and it genuinely was unputdownable!!! A true page turner absolutely rammed with suspense, tension and everything you want when you read a psychological thriller’ ⭐⭐⭐⭐⭐ Reader Review

‘I was hooked… Will leave you with shivers down your spine and chills in your heart. Some of the twists in this book left my jaw on the floor. And the ending blew me away. Outstanding!’ ⭐⭐⭐⭐⭐ Reader Review

‘A real psychological thriller with a dark side. Creepy, chilling with undertones of something darker. At times I had goosebumps on my goosebumps. I found this book impossible to put down and finally turned the last page at 1am. Yes. This book is that good!!!… MUST READ!!!!!’ ⭐⭐⭐⭐⭐ Reader Review

‘Absolutely brilliant… Immensely readable… Gripping… Never slows down at all’ ⭐⭐⭐⭐⭐ Reader Review

‘A completely unputdownable psychological suspense thriller that reeled me in right from the very start. The twists left me speechless. I did gasp out loud at the ending which I thought was brilliant' ⭐⭐⭐⭐⭐ Reader Review

Previously published as Every Move You Make