In a silky smooth segue from 2024’s For Our Sins, Edinburgh copper Tony McLean has returned from temporary retirement and is asked to investigate an apparently trivial break-in at a Biotech facility. Nothing seems to have been taken, no-one was harmed, so why is a Detective Chief Inspector sent on the job when it would normally be handled by a uniformed Sergeant? The answer is simple. Drake Biotech is owned and funded by billion are Nathanial Drake, who just happens to be on WhatsApp terms with Scotland’s First Minister.

When an old school chum approaches DI Janie Harrison with a request to look, for her missing boyfriend, a Serbian carpenter, Janie does a perfunctory search, but assumes the man has gone to ply his trade elsewhere. She has logged the photos from her chum’s phone, and is horrified to find, that when she is called out to woodland where a hastily buried body has been found, the remains are that of Vaclav Mihailovic.When the autopsy is carried out on the Serbian, the pathologist is both baffled and shocked. The unfortunate man is opened up, but there is no stench of decay. It seems that the gut bacteria that continue working away after the heart stops beating are mysteriously absent. There is no bloating and no breakdown of tissue.

Halfway through the book, Oswald escalates and complicates the narrative. First, the driver of the van that took the intruders to Blake Biotech is identified, but then rapidly disappears. McLean suspects he is working for an external intelligence agency. A professional protester called Sanderson, believed to be one of the Biotech vandals is found sitting on a park bench, stone dead. Then the bodies of both Sanderson and Mihailovic are stolen from the city mortuary. Long time fans of the Tony McLean novels have become accustomed to an element of the supernatural appearing in the narrative. Here, it comes in page one, but it is another 60 pages before we realise the relevance to Nathaniel Drake and his interests.

McLean ponders the situation:

“We’ve got a break-in at the lab by animal rights activists who turn out to be a diversion for some MI5 spook doing God knows what. One of the team turns up dead in the park, looking like he’s not eaten in months and shouldn’t have had the strength to wield a spray can, let alone smash up a lab. I’d really like to know what he died from, just in case I’ve got a new disease about to spread through the city.

But someone breaks into the mortuary and steals his body before the pathologist can have a proper look. And whoever does that has the ability to break the servers of a sophisticated security services company to order.

A company that, it turns out, is a fully owned subsidiary of Drake Corporation, whose labs were broken into. And am I going round in circles?”

Within the CriFi genre, police procedural investigations are not natural bedfellows with the paranormal. The late Phil Rickman made it work – in spades – and James Oswald does a pretty good job. He certainly pushes the boundaries here, and gives us a finale with an archetypal mad professor locked in a life or death struggle with McLean, Harrison, and the mummified heart of a man who was court magus to Vlad Dracul in the medieval Carpathian Mountains. All this aside, Oswald has given us a copper with instincts, compassion and humanity, coupled with the inner steel required to do what can often be a truly horrible job. The Rest is Death is published by Headline, and is available now.