Blacklight Blue

Enzo MacLeod, a Scot teaching on a faculty at Cahors in southwest France, confidently bet that he could use his expertise to crack seven notorious murders described in a book on cold cases by Parisian journalist Roger Raffin. Enzo has in fact solved the first two crimes.
But the third is far from his mind right now: heas just been diagnosed with a terminal illness, and heas become the victim of someone who seems intent on destroying his credit and his relationshipsaand getting him arrested for murder. This is one instance where his Scottish stubbornness might pay off.
Having established a safe house to protect his loved ones, besieged now as it were, he sets to work. Are his personal woes somehow connected to the digging heas done into the brutal murder of a rent boy in a Paris apartment sixteen years ago, as Raffin has described? What further remnants of evidence can he reviewaand can he stay alive long enough to catch the long-hidden killer? This is the third installment in the Enzo MacLeod series.