Blood Hunt by Ian Rankin

What the cover says:
"Gordon Reeve has a funeral to go to. His journalist brother has been found dead in a car, a presumed suicide. Not a nice reason to be flying the Atlantic.
And when he gets there it seems that nobody wants to answer his questions - why was the car in which his brother's body was found locked from the outside? Why does the local cop act like his shadow and prevent him talking to the friend who saw Jim last? Why does he have the sinking feeling that it wasn't a ghost he saw parked outside the crematorium?
Ex-SAS, a professional killer with an anger management problem, it's not in Reeve's nature to let such questions go unanswered, particularly when the murderers come knocking on his own front door."

I'm a big Rebus fan, and didn't really twig that this was one of Rankin's forays outside of Edinburgh until I started reading it. It's a slow-burner and took me a little while to get into, but then I began to be gripped, particularly towards the end. The scientific bits that are dropped in there did confuse me a little, but it didn't matter too much. Dark as any Rebus novel, but just as delicious.

8/10