While Robin Jarvis's earlier work -- serieses -- what's the multiple of series? oh crumbs, let me start over.
A series of books like The Deptford Mice (3 titles), and more recent books connected to that series, these books seem to be what Robin Jarvis is most widely known for.
His more recent books have pushed further towards the margins, rather than narrowing themselves to middle-of-road conventionality.

Just had my first look at Fighting Pax in particular, the final book of the Dancing Jax series. Here, a line, if not several lines, is/are deliberately and defiantly crossed. One can hardly blame those readers of the second book in the series, Freax and Rejex, who were left cold by Jarvis's variation on "A Modest Proposal" by Jonathan Swift back in the day. Yes, in Book 2, there is a detention camp, some detainees are small children, and at one point sausages are made but not from livestock. If it sounds as though I read about that book rather than actually getting my hands on that book, this is correct....libraries in my area, NONE of them carry this particular Robin Jarvis series, and perhaps that is the reason why not.