The past never stays buried for long ... Detective Chief Inspector Ryan believes he has put his turbulent history behind him. Then, in the early hours of the summer solstice, the skeleton of a young woman is found inside the Roman Wall at Sycamore Gap. She has lain undiscovered for 10 years, and it is Ryan's job to piece together her past. Enquiry lines cross and merge as Ryan is forced to face his own demons and enter into a deadly game of cat and...

When a man is found dead at the remote church of Heavenfield, DCI Ryan is the only other person for miles around. The police have no weapon, no motive and no other suspects. Already suspended from Northumbria CID, Ryan must fight to clear his name. But soon more than his career is at stake when prominent members of the mysterious Circle begin to die. Somebody wants Ryan's name to be next on the coroner's list, and to survive he must unmask the devil...

Beware what lies beneath ... One fateful, starry night, three friends embark on a secret camping trip, but only two return home. Thirty years later, the body of a teenage boy rises from the depths of England's biggest reservoir and threatens to expose a killer who has lain dormant ... until now. Detective Chief Inspector Ryan returns from honeymoon to face danger from all sides. In the depths of Kielder Forest, a murderer has escaped justice before...

Between the devil and the deep blue sea ? Viking treasure is discovered beneath the icy waters of the North Sea and local historian Doctor Anna Taylor is called in to help catalogue the most exciting hoard in living memory. But when a shipwreck diver washes up dead, she?s soon out of her depth. Luckily, she knows just the person to call ? When DCI Ryan arrives at the picturesque fishing town of Seahouses, he's faced with an impenetrable wall of secrets...

There's a serial killer targeting the streets of Newcastle, seemingly picking his victims at random but subjecting them all to the same torturous end. When the chief inspector on the case goes missing, it falls on DCI Ryan to track down the man who is brutally murdering women and goading the police to 'catch me if you can'. As everyone becomes a suspect, Ryan and his team get drawn further and further into the case, but for Ryan the nightmare gets...