On Sunday, I finished THE KILLING HABIT by Mark Billingham. I ripped off the last 100 pages or so while the person behind me on my flight home was vomiting in his chair. Happy Easter..... (bunny emoji) Despite my inauspicious personal surroundings, THE KILLING HABIT was a good day for the author Mark Billingham. Over the course of the last couple books, he has transitioned his series from Tom Thorne to Tom Thorne and Nicola Tanner. And in fact, his next work, THEIR LITTLE SECRET, is firmly presented as Thorne and Tanner novel. [Editors Note: Well at least on the UK side it is ...] And given how THE KILLING HABIT ended calling THEIR LITTLE SECRET a Thorne/Tanner book makes a lot of sense if just for this one only. Of course, I am reminded of another series trying to do something similar, the Bosch and Ballard books that Michael Connelly has been writing over a similar amount of time. And based on the limited sample size of both authors works, I have to say Billingham is doing ...