Hi Declan,I met Alex's editor, Wayne Brooks, at Harrogate this year and I asked him the same question. He told me that Alex wanted to call it TAINTED, but that he wanted to call it BLACK RUN. I got the impression he was winning the argument... I can see where he's coming from - BLOOD RUNS COLD and BLACK RUN have an implied theme/brand in the titles, and since they're both Ren Bryce books then it does make sense. Brand is king...