Detective Sergeant George Cross is unique among fictional British coppers in that he is autistic. This apparent disability gives him singular powers when investigating crimes. While totally unaware of social nuances, his analytical mind stores and organises information in a manner denied to more ‘normal’ colleagues within the Bristol police force. When questioning suspects or witness his completely literal mindset can be disconcerting to both guilty and innocent alike. Regular visitors to the site may remember that I reviewed two earlier novels in the series The Monk (2023) and The Teacher (2024) but, for new readers, this is the background. Cross is in his forties, balding, of medium height and, in appearance no-one’s idea of a policeman, fictional or otherwise. He lives alone in his flat, cycles to work, and likes to play the organ in a nearby Roman Catholic Church, where he is friends with the priest. George’s elderly father lives nearby, but his mother left the family home when George was five. At the time he was unaware that she left because Raymond Cross was homosexual. Now, Christine, has slowly reintroduced herself into the family group and George, reluctantly, has come to accept her presence.

This case begins when an elderly bookseller, Torquil Squire returns to his flat above the shop after a day out at an antiquarian book sale at Sothebys. He is horrified to find his son Ed, who is the day-to-day manager of the shop, dead on the floor, stabbed in the chest. George and his fellow DS Josie Ottey head up the investigation which is nominally led by their ineffectual boss DCI Ben Carson.P.The world of rare and ancient books does not immediately suggest itself to George as one where violent death is a common occurrence, but he soon learns that despite the artefacts being valued in mere millions rather than the billions involved in, say, corporate fraud, there are still jealousies, bitter rivalries and long running feuds. One such is the long running dispute between Ed Squire and a prestigious London firm Carnegies, who Ed believed were instrumental in creating a dealership ring, whereby prominent sellers formed a cartel to buy up all available first editions of important novels, thus being able to control – and inflate – prices to their mutual advantage.

Then there is the mysterious Russian oligarch, an avid collector of books and manuscripts, who paid Ed a sizeable commission to buy a set of fifteenth century letters written by Christopher Columbus, only for the oligarch to discover that the letters had, in fact, been stolen from an American museum. Could Oleg Dimitriev have resorted to Putinesque methods following the debacle?

Running parallel to the murder investigation is a crisis in George’s own life.  Raymond discovers that he has lung cancer, but it operable. During the operation, however, he suffers a stroke. When he is well enough to return home he faces a long and difficult period of recuperation and therapy for which George is ready  and able to organise. More of a problem for him, however, is the challenge to his limited emotional capacity to deal with the conventionally expected responses. Even before his father’s illness, George has been disconcerted to learn that Josie Ottey has been promoted to Detective Inspector, and he finds it difficult to adjust to what he perceives as a dramatic change in their relationship.

The killer of Ed Squire is, of course, identified and brought to justice, but not before we have been led down many a garden path by Tim Sullivan. The Bookseller is thoughtful and entertaining, with enough darker moments to lift it above the run-of-the-mill procedural. Published by Head of Zeus, it is available now.