Payback by Mark Brumby is a genre hopping quirky, crime/sci fi thriller crying out for a movie or TV treatment. A financial journalist is chasing the scoop of a lifetime. He is investigating the dirt on an orphaned billionaire whizz kid who lost his parents in an apparent murder-suicide nine years earlier. Mark’s whodunit takes a calculated risk throwing in a wicked curveball midway through the narrative, adding an intriguing Sci Fi twist. Does the flip work? Well, I never took biology at school but was more than ready to suspend any disbelief as Mark skilfully makes the science credible in a dog-eat-dog world where only the fittest survive.