I just finished listening to Richard Morgan's Thirteen from Audible. This new novel is an involving story about a genetically engineered mutant, such people carry the nickname Thirteen. Reminds me of Rome. The 13th Legion warriors were aggressive and invincible. So are the mutants. They are fierce male warriors recruited for dirty work such as military ops, assassinations, and tracking down people who don't want to be found. I would disagree with anyone who claimed this book is not science fiction. However I would understand their claim. This book starts with the crash of a spaceship from Mars, the sole survivor is a mutant human, another Thirteen is recruited to hunt him down, this hunter was on Mars, and returned to Earth enhanced with military implants.
But this is another of Morgan's detective story with cops and guns and government agents and conspiracies, and murder scenes and drug dealers.
I'm glad I read it and would recommend it to anyone interested in scifi, but I was disappointed that the science fiction elements played such a minor role. This story would be essentially identical if it had been written without any of them. The Kovacs trilogy was a lot more dependent on the scifi devices.