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The Reek of Red Herrings (2014, US edition 2016) is in essence a missing person story but not without an element of a macabre whodunit plot. Dandy Gilver and Alec Osborne, McPherson's private detective series characters, are hired by fish merchant Mr. Birchwood to find out why several of his herring barrels included some unexpected ingredients -- body parts. They need to go to Gamrie, where the fish barrels were purchased, and to prevent any others from being sold. But at all costs they cannot let anyone know why they are in the town or that Mr. Birchwood has hired them. He is trying his best to prevent a horrible scandal from ruining his business and this is why he refuses to let the police know of the secret of the herring barrels. Of course if they also manage to uncover the identity of the dismembered man more power to them. That part of the mystery doesn't seem to concern Birchwood as much as preserving his reputation and saving his business.
Dandy and Alec make their way to Gamrie in the guise of philologists researching the local patois along with Scottish folklore. They hope by pretending to gather anecdotes and cataloging the unusual Scots vocabulary they will also be able to get the Gamrie people to talk openly about the events of the past few days. They get more than they bargained for when over the course of their many interviews they learn of several strangers who turned up in town and then suddenly disappeared. The mystery of the body parts and the identity of that man becomes complicated when the a total of seven missing men of various physical descriptions turn up. Which one of those missing men could be the one who was chopped up as a herring garnish?
The story is an engaging mix of utterly wacky characters and unnerving menace. You'll meet all the fisherman's wives and daughters, a couple of eccentric taxidermists, and learn more than you ever expected about life in a Scottish fishing village, circa 1930. In addition McPherson finds ways to incorporate a variety of unusual Scottish traditions like handfasting and the accompanying marriage rituals like feet washing and feet mucking and the practice of dousing a bride-to-be with ginger infused mucky milk to prevent Auld Clootie (the Devil) from finding her attractive and spiriting her away prior to her wedding. In their disguise as "language experts" McPherson allows the story sometimes to become overburdened with Scots dialect making the use of a glossary almost necessary. She does allow the local characters to translate their lingo for Dandy and Alec, but not as often as I wish she had. Much of the meaning needs to be gleaned through context. Still, all of it is utterly fascinating for anyone interested in learning about fading culture and mores. Notably the discussion of "teenames", a peculiar nicknaming tradition necessary to keep distinct all similarly named residents, is one facet that astute readers ought to pay close attention to for it has one of the best hidden clues key to solving the many mysteries uncovered by our sleuthing duo.
If you are familiar with McPherson's work then you will know that she has a penchant for Scottish Gothicism. I get a sense of Stevenson and Buchan sneaking their way into her narratives. She makes excellent use of creepy landscapes, eerie natural landmarks, abandoned and dilapidated estate houses, and terrifying meteorological events. Most of the Dandy Gilver books are set in the late 1920s, (though ...Red Herrings is the first to take place in 1930) and take advantage of dialectical language plus a variety of Scottish legends which are always intrinsic to the her intriguing and intricate plots. Compare these with her stand alone books, all set in present day, and you find the same motifs and techniques employed. The stand alone mysteries also give her an opportunity to explore the darker side of her imagination. The Child Garden (2015), for example, is just as macabre as The Reek of Red Herrings making use of some supernatural legends and lore to great effect.
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Most importantly to fans of traditional mysteries is the structure of the novel itself as well as her skill with the multi-layered plot. McPherson has a deft way of dropping clues into the narrative and has some subtle methods of foreshadowing that will help readers discover along with Dandy and Alec just what all the multiple mysteries add up to. It is rare that I encounter a modern mystery writer who still honors the traditions of the fair play detective novel and can do it so well. McPherson does an admirable job in laying down the groundwork necessary for clever readers to arrive at the solution almost at the same time as Dandy does. I was impressed with the talent and skill displayed in this genuine detective novel. I hope she continues to find new ways to bamboozle and thrill her readers in all her future mysteries.
UPDATE: The Reek of Red Herrings deservedly won the Agatha Award for Best Historical Mystery at Malice Domestic 29 on April 29, 2017. All the more reason to read it, IMO.