A satisfying, if possibly somewhat abrupt, conclusion to one of the best series related to King Arthur ever made. I give it a strong recommendation to fans of historical fiction or the Matter of Britain.
The final book in Whyte's Camulod series is once again told from the point of view of Lancelot, or Clothar the Frank, as he follows Arthur, now at least the nominal High King of all Britain, to secure his realm, threatened by forces from the north of the isle. Along the way, Clothar helps Arthur establish and refine an order of Knights Companion from the best and brightest of the various parts of the armies of Camulod. Clothar and Arthur also run into a young girl named "Maia," the tomboyish sister of a potential queenly match for Arthur, who of course is later discovered to be Gwinnifer, the Guinevere of legend. In an effort to establish both trade relations and military alliances, Arthur sends Clothar back to Gaul, where he negotiates a deal with locals to train them in the stringent and effective Camulodian style of warfare to fend off an invasion of Huns. Clothar and Arthur also become aware of Mordred, Arthur's son produced from a tryst with the woman Morag, who unbeknownst to Arthur was his half-sister.
The story progresses well for the vast majority of the book, with Whyte's standard granular level of detail of life in post-Roman Britain and Gaul combined with a plot simply laden with action and adventure. I will say that after reading through nine novels in the series, I felt that the conclusion seemed a bit abrupt, leaving off a number of the side-quests and major plotlines of the later stages of Arthur's reign as depicted in the original Arthurian sources (Mabinogion, Chretien de Troyes, etc.) -- and for this reason, I took away one star from a perfect five-star review. That said, this book, and indeed the entire series, is incredibly satisfying to read, and I recommend it strongly.
I did not note any major editorial issues with grammar, spelling, or syntax, so I'm pleased to note that, after a few books in the middle of the series strayed from a good final revision, this concluding entry finished with a good, clean copy.
As I've noted in reviews of all the others in this series, this has rapidly become my favorite modern series dealing with the Arthurian legend, so I can't recommend it highly enough to fans of the Matter of Britain, historical fiction, or adventure stories.