The Cutting Edge by Jeffery Deaver

Published by Grand Central Publishing on April 10, 2018

The Cutting Edge begins with a robbery and murder at the office of a Manhattan diamond cutter. The robbery is interrupted by the diamond cutter’s young assistant, Vimal Lahori, who barely avoids being murdered itself. The killing is the kind of crime that the city doesn’t want to publicize, for fear that it will bring more crime to the rundown part of Midtown that diamond merchants populate. In the hope of getting a quick resolution, the police turn to Lincoln Rhyme.

Rhyme and Amelia Sachs soon discover that the murder is linked to other diamond-related killings that seem bizarrely  motivated. The case becomes even stranger when the presumptive killer is seen lurking about a geothermal drilling site. Rare New York earthquakes are attributed to the drilling, but Rhyme and his team wonder whether the geothermal company is being falsely blamed by environmental protestors, or by a competing fossil fuel company, or perhaps by someone else.

The actual motivation for the murder (and for several that follow) is a bit of a stretch, but I forgive Jeffery Deaver because the plot is original and clever. While the nuts-and-bolts of the forensic work undertaken by Rhyme’s team becomes a bit tedious (how many times do we need to be told that crime scene analysts need to “walk the grid”?), the detailed discussions of diamonds and earthquakes and geothermal drilling are interesting. An extended explanation of cryptic crosswords suggests that Deaver is a fan, but it comes across as filler.

Character development is always a strength in a Deaver novel, and while nothing much is added to the lives of the Rhyme or his supporting cast, the characters who are unique to this novel, including Vimal and a couple of bad guys, are rich in texture.

In a subplot, Rhyme crosses to the “dark side” (or so his colleagues believe) by working for a Mexican drug lord to investigate a claim that the feds fabricated evidence against him. Rhyme enlists the help of Ron Pulaski to uncover the truth, putting both Pulaski and Rhyme at risk of prison sentences when vengeful federal prosecutors decide that Rhyme and Pulaski should be arrested for obstructing justice and a litany of other federal crimes. In fact, they seem to think that working for a defendant is itself a crime, an attitude that is entirely consistent with that of many (but not all) career prosecutors who believe they have a monopoly on the truth. Unfortunately, by the time the subplot is completed, Rhyme still hasn’t recognized the prosecutors as the sleazebags they prove themselves to be (because their view of whether Rhyme and Pulaski broke the law depends on which side he’s helping, not on the facts). The subplot, it seems to me, is a major disappointment.

A much better subplot involves Vimal’s relationship with his parents and his desire to live his own life, not the life his father has chosen for him. The subplot is predictable, but Deaver handles it well. While not everything about The Cutting Edge appealed to me, that’s often the case with Lincoln Rhyme novels. I keep reading them because Deaver does so things well that I can easily overlook their faults.

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