Xenopath is the second in the Bengal Station series and another excellent novel. These books aren’t numbered and I had to go on the Internet to find out which one to read after Necropath (I have Cosmopath too) and now I’ve been trying to decide whether the order matters. If you were to pick up this one without having read the previous one there’s not much you’d fail to understand. In essence these are your hard-boiled detective book with an SF twist and reading them out of order would be like randomly picking up a Sue Grafton or Peter James. Reading in order enhances your enjoyment because you’re familiar with the main characters and their story, but each ‘investigation’ is self-contained. I can see how this could become formulaic with a whole series of ’paths after Cosmopath, but if it’s a formula you enjoy then there’s nothing wrong with that.