Revenant is the ninth and final book in the Greywalker series written by Kat Richardson and centered on Harper Blaine, a private investigator, who inadvertently became a Greywalker, a person who can see and walk among the supernatural, when she died for two minutes.
Harper joins her lover Quentin and the vampire necromancer Carlos in an overseas mission to stop James McHenry Purlis, Quentin's mad father from unleashing literal Hell on Europe. After Purlis established "The Ghost Division", a branch of the CIA meant to study and exploit the supernatural, he has been sowing chaos and terror in the global theater in a bid to strengthen the United States' position as a global superpower.
Purlis teams up with the Kostní Mágové, the Bone Mages, who are religious fanatics who uses bones for their spells and bindings. When Purlis goes so far as to kidnap Soraia, his six-year-old granddaughter and Quentin's niece, to be used as a sacrifice in a spell to be cast by one of his lackeys, the race is on to find the girl and stop the spell that could cause disaster worldwide.
Their investigation leads them to Portugal, in particular to the desecrated tomb of Sebastian of Portugal, the Keing of Portugal and the Algraves in the late sixteenth century and the penultimate Portuguese monarch of the House of Aviz. He is known as the sleeping king who would return to help Portugal in its darkest hour, similar to King Arthur, Frederick Barbarossa, or Constantine XI Palaeologus.
It all recalls Harper Blaine's very first paranormal case and hold clues to the cult's true intentions, which is rather disturbing. It is up to Harper, Quinton, and all the help they can mustard to avert a necromantic cataclysm that could lay waste to Europe and drag the rest of the world to the brink of war. Having this case reminded of Harper Blaine's first case was ingenious and haves the series brings full circle to the series.
Revenant, an apropos title for the final book, is written rather well. Richardson has mixed the paranormal, magic and urban fantasy rather well with history and legend of European, in particular Portuguese in nature. It was high on the mystery, action packed, and a wonderful tour of the Old World. It was a risk having the final book take place outside the familiar Seattle, but I think that it was a risk well taken, because it should be a wonderful finale to have a worldwide event for the protagonist to solve or take care of.
Richardson's gift for description was the highlight of the places that Harper Blaine had visited, however the description of Carlos' house that exists in different times – it was a tad weird and confusing, but that should not really surprise me, because time travelling has always gave me a headache. The relationships between the characters have tightened, deepened, and strengthened over the series – it is a joy to see how much growth Richardson made when writing this series.
The Greywalker series as a whole is wonderful in writing and conception – it took a couple of installments for Richardson to find her footing, but it was well worth it. It was a pleasure to witness an author's growth as the reader spends more time with the series. I also liked that Harper Blaine was a normal human being and at heart were detective stories with a hint of the mystical. It was a pleasure to read the growth of Harper Blaine from wanting to avoid the Grey to accepting it and growing in strength within it. In short, it is a wonderful series and one of my favorite urban fantasies so far.
All in all, Revenant is written extremely well and a good conclusion for the series, which I was glad that I have chosen to read.