He had wanted to update Robert Louis Stevenson's "Dr. Jekyll and Mr. Hyde" for modern times, Ian Rankin writes about his first Inspector Rebus novel, "Knots and Crosses" in the introduction to the British compilation "Rebus: The Early Years", which contains the first three installments of the series. Oblivious to the mere existence of such a thing as the mystery genre – or so Rankin says – he was stunned to soon hear his book described first and foremost as a crime novel. But eventually this characterization prompted him to have a closer look at the work of other mystery writers, and he found that the form suited his purposes just fine; that in fact he "could say everything [he] wanted to say about the world, and still give readers a pacy, gripping narrative."
Bearing in mind the original duality of Jekyll and Hyde, however, Rankin's tales are not dominated by a contrast painted in black and white. While the villains Inspector Rebus faces are certainly every bit as evil as Stevenson's Mr. Hyde, Rebus himself is far from a clean-slated "good guy:" Divorced, cynical, hard-drinking and a former member of the SAS, he is a brother in spirit to every noir detective from Dashiell Hammett's Sam Spade and Raymond Chandler's Philip Marlowe to Michael Connelly's Harry Bosch, James Ellroy's squad of crooked cops and Peter Robinson's Alan Banks. Nor is Rebus's Edinburgh the touristy town of Calton Hill, castle and Summer Festival (although the series has meanwhile sparked real-life guided tours to its most famous locations, too) – as befitting a true detective of his ilk, Rankin's antihero moves primarily in the city's dark and dirty underbelly, which is populated by society's losers and where those who have "made it," those with money in their pockets, only show up if they have shady deals to conduct as well.