The Unlikely Spy is the fifth of the Gareth and Gwen mysteries. I love this historical mystery series set in twelfth-century Wales. At least some of the characters are based on actual historical figures (although Gareth and Gwen themselves are at least mostly fictional). At least some of the murders they are tasked with solving must be fictional as well. But the political situation in Wales in the twelfth century, in which the many tiny kingdoms that made up Wales at the time, and the endless intrigues between their rulers make these mysteries seem entirely plausible. The methods they use to solve their cases in the absence of modern crime-solving tools (they don’t have access to fingerprint, DNA, ballistic, or fiber analysis tools, of course) seem entirely appropriate and plausible for the time.
Gareth is now the captain of Prince Hywel’s guard. Hywel, the second son of king Owain of Gwynedd, is now serving as lord of Ceredigion, a small coastal area in Gwynedd. At this time, Gwynedd is one of the larger of the Welch kingdoms. Hywel, a gifted singer himself, is currently sponsoring a sort of music festival at his castle in Ceredigion. It is against the background of this festival that the search for the murderer of a man found floating in the millpond takes place.
Far and away the cutest characters in the story are Gareth and Gwen’s daughter, Tangwen, and Hywel and Mari’s son, Gruffyd. The two children are still less than two years old, but Tangwen in particular is already able to get into things and cause trouble. I wonder if they will be more in evidence in later books in the series.
It’s interesting to see Hywel’s older brother, Prince Rhun taking an active part in this investigation. Rhun has been helpful before, but his other duties have mostly kept him too busy to be closely involved in the murder investigations.
In this case, the murder appears to be the result of someone mistakenly thinking the victim too stupid to realize the significance of the spy errands they asked him to run. Gareth and Gwen – and Hywel – again wonder if Cadwallader, Hywel’s uncle, is responsible. Of course, Cadwallader, himself a prince of Gwynedd, didn’t commit the murder himself. But, as usual, he is mixed up in it, even if only indirectly.