Book 1

Without Trace

by Katherine John

Published December 1990

In the chilly half-light of dawn a bizarre pierrot figure waits in the shadows of a deserted stretch of motorway. The costumed hitchhiker's victim is a passing motorist. The murder, cold-blooded, brutal. Without motive.

Doctors at the local hospital Tim and Daisy Sherringham are blissfully happy. The perfect couple.
When an emergency call rouses Tim early one morning, he vanishes on the way from their flat to the hospital and Daisy is plunged into a nightmare of terror and doubt . . .


Book 2

Midnight Murders

by Katherine John

Published 1 January 2006

Second book in the Detective Trevor Joseph series.

Compton Castle is a Victorian psychiatric hospital long overdue for demolition. Its warrens of rooms and acres of grounds, originally designed as a sanctuary for the mentally ill, now provide the ideal stalking ground for a serial killer.

Physically and mentally battered after his last case (Without Trace), Sergeant Trevor Joseph is a temporary inmate – but the hospital loses all therapeutic benefit when a corpse is dug out of a flowerbed. Then more bodies are found; young, female and both linked to the hospital. Everyone within the mouldering walls is in danger while a highly unpredictable malevolence remains at large. And, as patients and staff are interrogated by the police, the apparently motiveless killer watches and waits for the opportunity to strike again . . .


Book 3

Murder of a Dead Man

by Katherine John

Published 4 May 1995

Third book in the Detective Trevor Joseph series.

Jubilee Street – the haunt of addicts and vagrants is a part of town to avoid at all costs, especially when it becomes the stalking ground of a brutal and ruthless murderer.

A drunken down and out is the first casualty, mutilated and burned alive but his grisly death raises even more problems for the investigating officers, Sergeants Trevor Joseph and Peter Collins.

They discover that their victim died two years earlier. So who is the dead man? And what was the motive for the bizarre crime? While they seek a killer in the dark urban underworld, the tally of corpses grows and the only certainty is that they can trust no man’s face as his own.


Book 4

Black Daffodil

by Katherine John

Published 21 April 2008
Detective Trevor Joseph has his work cut out with the advent of a new Welsh synthetically produced drug - black daffodil and its impact on the criminal fraternities operating in and around Cardiff Bay and the Welsh Valleys

Book 5

No evidence remained on the bodies of Alun Pitcher, a well-liked, wealthy, careful and cautious businessman, and his family after they'd been wrapped in brown paper and string, doused in petrol and ignited. The fires had destroyed any evidence, or so the pathologist and the local police believed.

Defeated, the local force asks for outside help. Following success in solving a previous 'cold' case, Inspector Trevor Joseph and Sergeant Peter Collins are called in. Their superiors trust them to provide answers to the questions that have confounded the local force.

Did the murderer or murderers possess knowledge of police procedure and criminal investigative methods that have resulted in the perfect, unsolvable crime? Why would anyone want to kill a well-liked family who have no known enemies? How did the murderer or murderers overcome three grown men and a woman without anyone seeing anything, or hearing a sound? And, most important of all, was all the evidence really destroyed?


Book 6

A Well-Deserved Murder

by Katherine John

Published 25 August 2008
There have always been neighbours from hell. Some deserve to die, but most people stop short of murder. But when Sgt Peter Collins looks at Kacy Howell's axe-battered corpse, he has to ask himself if his cousin, Alan, didn't. Sergeant Peter Collins' cousin, journalist and photographer Alan Piper is living next door to the neighbours from Hell. They build a deck that overlooks his patio and monitor his every movement. Under the cover of darkness they steal plants and building materials from his garden, but when his gate and gatepost disappear he calls in the police who advise him to put up a CCTV camera. Alan has a better idea. Mousy civil servant Kacy Howell is amazed to suddenly find herself the centre of attention at work and showered with unprompted gifts of flowers, chocolates and discreetly wrapped sex toys. Her husband, George, is bewildered until a colleague shows him a pornographic magazine aimed at the amateur photographer. Before George finds out if the photos are real, Kacy is found battered to death on the decking that overlooks Alan's garden.
Inspector Trevor Joseph and Sergeant Peter Collins find themselves wanting to look beyond the obvious suspect for a murder, which Kacy's neighbours have already Christened 'justifiable homocide'.