Robicheaux, tuned in to all these nuances, is a sure-footed traveller through this landscape, driven by a strong, if understated, moral imperative; he is aware of, but immune to, racial and social distinctions and has an innate ability to spot a delinquent, even those fêted by wider society. His ancestry frees him from guilt as either an engineer or beneficiary of the racialised social structure of Louisiana. Flawed like so many modern heroes, he is a recovering alcoholic, a Vietnam vet. subject to post-traumatic stress disorder, taking the form of wartime flashbacks, and a protective family man, a role which can morph into a vulnerability when the family becomes a target. The partner is often a necessary adjunct in serial detective novels and Clete Purcel adds further ethnic colour to the novel’s cast. He is descended from the Irish “navvies” brought to dig New Orleans' Basin Canal in the 19th century and combines alcohol addiction with an explosive irascibility but like Robicheaux at bottom has a strong moral core. The duo’s outspoken natures and willingness to verbally engage with the rogues’ gallery in the plot results in vivid, lengthy passages of dialogue whose sexual, anatomical inventiveness might draw plaudits in the changing room of a University Rugby team but might dissuade more fastidious readers from engaging further with the story. Setting a story in the Deep South always gives an author licence to draw his villains from the Grand Guignol section of Central Casting and the varied ranks of the book’s malefactors range from the physically and morally repellent to those clothed in an ominously sinister detachment. Briefly, to avoid issuing a spoiler alert, the plot hinges on our two protagonists’ investigation of the murder of two teenage girls whose backstories differentiate them from the prostitutes and drug addicts who constitute the rest of this file. This takes them on a Dante-esque journey through circles of evil and the bodies pile up with the dispensing of contrapassi The pace of the tale markedly quickens in the violent, detailed recounting of the action sequences. Notoriously, the Ku Klux Klan wore white bed sheets to symbolise the ghosts of the Confederate dead whom they believed rode with them and the author draws from this well of eccentric Southern spirituality as the ghost world seems to summon Robicheaux when, in moments of danger, he feels seduced by the quasi-suicidal hallucination of a 19th century Mississippi paddle steamer complete with Southern belles and ship’s officers on deck, an audible orchestra and an insistent ship’s horn, all drawing him to submit to crossing over to a nether world. The title The Glass Rainbow echoes two instances in the book where a character comments on the transformative effect of viewing people in light which has passed through stained glass and conceivably, by extension, how our judgement on someone can be influenced by the filter we use on the lens through which we view them. This would apply to the spectrum of characters from the atypical murder victims to the socially prominent but deceptive villains.
Some of Burke’s descriptive writing verges on the lyrical, inviting comparisons with Le Carré raising the spy thriller to an art form and the text is liberally sprinkled with intermittently perceptive, introspective philosophising. This and his tendency to luxuriate in verbal and physical violence makes for an increasingly tenuous relationship with the plot lines. It is almost as if his Muse has been transformed into a literary Frankenstein’s Monster careering round the script and inserting characters and incidents purely as vehicles to display the author’s virtuosity. More stringent editing could have made this more than the decent read that it is, leaving this reader to ponder if Burke’s literary canon should be added to the South’s Lost Cause myth.