Mark Douglas-Home gives us the 4th in his terrific Sea Detective series, featuring marine scientist and oceanographer, Dr Caladh 'Cal' McGill, a solitary, taciturn man, a misanthrope who prefers his own company, emotionally unavailable to all, including those close to him and friends. He lives in Edinburgh, working as a detective on cases that make use of his special expertise. However, he finds himself the unwarranted target of hate from the public after the broadcast on TV of Missing Not Forgotten, where the distraught daughter of a missing father claims that Cal has essential information as to his whereabouts after he had met her father once. This leads to Cal losing all his clients, but despite this, he refuses to defend himself. Alex Lauder, an oceanographer friend, is dying, having made Cal promise that he would carry out a much wanted wish, a guilt ridden Cal is reminded of it by Alex's mother to ensure he keeps his word.
There are multiple threads in the story, all of which appear disparate and unconnected in this ambitious and complex story. 23 years ago, Christina Tolmie, a single mother with two small daughters, Kate and Flora, disappears without trace. She was a charity worker, making trips to countries like Romania to donate and distribute second hand clothes to orphanages. Her van was found abandoned close to Calais. Flora, Alex's girlfriend, has never given up on trying to find out what happened to her mother. She is estranged from her sister, Kate, who thinks she is wasting her time. However, when Flora goes missing, Kate goes to meet Cal after finding his name on a note in Flora's possession. This draws Cal into locating Flora and the truth of what happened to Christina, and whether there is any connection to the discovery of a dead girl, Ruth, her body turning up around the same time.
Christina's suitcase turns up in Southwold in Suffolk, found long ago by the now dead Stephen Hawes. In the meantime, a beggar, a man in his mid-fifties, Louis Dufour, is stabbed to death by the Haymarket Station, a murder being investigated by DS Helen Jamieson. Norwegian Olaf Haugen is a dedicated beachcomber and maker of driftwood men, all without a mouth. After losing everything, he is living in a hut owned by Lotte, a friend of Sarah's on the island of Texel, just off the Netherlands. Slowly but surely, in the most unexpected of ways, all the different threads begin to come together to reveal a complex narrative of bodysnatching, illegal sea burial, murder, guilt, betrayal and revenge. Integrally connected to the people and events, although he is unaware of it, is Cal.
This is not a crime series for those who like fast paced reads, full of tension and suspense, and with thrills round every corner. It is a more cerebral crime read that demands patience, well researched in the technical details of Cal's oceanographer expertise, a fascinating specialist skill that allows him to work out what could have happened to Christina all those years ago, aided by a wide array of informants and sea enthusiasts. Douglas-Home's plotting is considered and intricate, it must have been a time consuming affair to make all the different threads work so well until they come together so beautifully at the end. This is a wonderful addition to what is an excellent and unusual series. I look forward to the next book, I just hope I will not have to wait long for it. Many thanks to Penguin Michael Joseph for an ARC.