Any book that begins by quoting both T.S. Eliot and the Lerner and Loewe musical BRIGADOON is a must read as far as I'm concerned. That it happens to be a rapid fire murder mystery makes it all the more charming.
In THE HANGING GARDEN Rebus is trailing a WWII war criminal when their paths cross with a Chechen gangster who is running prostitutes out of eastern Europe. It becomes very personal when Rebus's only daughter Samantha is the victim of a hit and run. Rankin makes you hypothesize how the rules of the game change when family is threatened.