The Teacher by Tim Sullivan
Thursday, April 30, 2026 at 9:21AM 
First published in Great Britain in 2024; published by Atlantic Crime on May 5, 2026
George Cross is among the most entertaining protagonists in the modern world of crime novels. He suffers from Autism Spectrum Condition (he used to call it Asperger’s Syndrome but he’s changed his preference). Perhaps his co-workers suffer more than George, because he fails to recognize social cues and is thus unintentionally rude to everyone. When people get to know him (as readers quickly do), they realize that he makes the best of what he’s got, and what he’s got is focus and tenacity. When George locks onto an unsolved murder, his mind doesn’t rest until he’s found the solution. But what George doesn’t have is ill will. He simply wants the truth to come out and can’t understand why anyone else would have a different agenda.
The Teacher develops George and surrounding characters a bit less than earlier Cross novels. To the extent that Tim Sullivan adds to his well-developed characters, family plays a strong role in the novel. Mothers are particularly important. A subplot involves as the mother of George’s work partner, DS Josie Ottey, who now lives with Josie in one of those uncomfortable adult mother-daughter relationships.
George’s mother is back in his life. Her husband has recently died and she’s hanging out with George’s father, the most stable element of George’s universe. His father accepts him for who he is and keeps him anchored. George is starting to fret about how he will survive when his father passes, a worry that humanizes George and helps the reader appreciate that, whatever his condition might be called, he is still a human who deserves empathy and understanding.
The plot follows a formula that serves mystery writers well. It starts with a murder. Alistair Moreton has been stabbed in the heart with a chisel. His German Shepard mourns his master’s death, although that may be the only creature who will miss Alistair.
The story then introduces a number of plausible suspects, starting with a next-door neighbor, Barnaby Cotterell, who shared a driveway with Alistair and was hot-headed about Alistair’s maintenance of the hedges. But Alistair used to be a sadistic headmaster and there is no shortage of former students who have vowed to see him in his grave. Some resent him for making his son the head boy. The son, Sandy Moreton, is now a member of parliament, although another of Alistair’s students, Richard Brook, got Sandy recalled for bullying his staff. Like father, like son, it seems.
It turns out that Alistair developed a drug addiction after he had hip surgery. When his doctor wouldn’t prescribe more narcotics, he found a supplier. Two men then moved into his house, keeping him high with their supply while they used his residence as a base for their drug distribution. And then there’s Malcolm Fisk, who once accused Alistair of kidnapping his daughter. They are among the many suspects Cross interrogates as he tries to identify the killer.
A new detective, DI Bobby Warner, is filling in from another jurisdiction. He quickly settles on Cotterell as the killer and devotes his time to proving his theory is correct, a common method of police work that leads to the conviction of innocent people. The method is anathema to Cross, who soon finds himself at odds with Warner.
Warner is also at odds with police staffer Alice Mackenzie, an attractive young woman who doesn’t appreciate Warner’s aggressive sexual interest. Men who don’t know how to behave with women and the institutional protection they enjoy is a recurring theme in the story.
It’s no surprise but immensely satisfying when Cross proves that Warner’s theory is unsound. Alice is a bit more physical in teaching Warner a lesson. Cross finds the killer by turning his obsessive attention to the clues until he pieces them together in a new way. He’s assisted by the efforts of forensic investigator Michael Swift, who fancies himself a Watson to Cross’ Holmes. Several dogs enter the story and Swift’s ability to identify the dogs helps Cross identify the killer.
In book after book, Tim Sullivan delivers all the elements of a classic whodunit. I love the series, however, for Sullivan’s ability to create likeable characters while reminding readers that compassion and understanding are essential components of a meaningful life.
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