This is my first read of what is the 11th in the Cyrus Barker and Thomas Llewelyn series by Will Thomas set in the Victorian era in 1892 and it works reasonably fine as a standalone. Cyrus and the much younger Thomas are enquiry agents, detectives that handle a wide range of cases, much to the displeasure of the London Police Commissioner, James Munro. A high ranking Foreign Office agent operating in Eastern Europe, Hillary Drummond, arrives in London having stolen a religious relic in a satchel, apparently the ancient remnants of a gospel, belonging to the German Government. Drummond is murdered but the satchel ends up in the hands of the British government. Cyrus and Thomas are summoned by Salisbury, the Prime Minister, keen to avoid further exacerbating fraught relations with a Germany wanting to expand their influence and power. He wants the enquiry agents to travel to Calais and deliver the satchel to a Monsignor Bello, a Vatican representative, which Cyrus agrees to do for no payment, considering it his patriotic duty.
Thomas is now a fully fledged partner in the business, but his and the irascible Cyrus's relationship is an unequal affair, he has been an assistant for so long, it is clear that it is Cyrus that is in charge. His relationship has similar echoes to that of Watson with Sherlock Holmes, with a narrative that is delivered from Thomas's perspective. Thomas is now married to Rebecca, a Jewish woman, who is being shunned by her family and community for getting wed to a non-Jew. This is a story of government intrigue, including the likes of Hesketh Pierce from the Home Office, the Foreign Office and Scotland Yard. To complicate matters further, there are a diverse range of characters, all desperate to get their hands on the gospel and they are willing to do whatever it takes, including murder. The enquiry agents find themselved surrounded by danger from numerous quarters, such as a group of blue uniformed young men from Europe, an Austrian antiquities broker, Count Valentine von Arnstein, related to the Kaiser, American evangelist, Daniel Cochran, and the extreme collector, Peter Naughton, Lord Grayle, and others.
The author evokes an atmospheric picture of the Victorian period and the city of London, with rich descriptions that highlight the class distinctions, attitudes to women, and the proliferation of extreme poverty. There is, as there is today, widespread anti-immigrant and refugee feelings, and with the character of Daniel Cochran, the pushing of the offensive ideology of eugenics and racial superiority of this time. This is an entertaining historical mystery, with a great range of characters that grabbed my interest. This is likely to appeal to those who love their historical fiction, particularly that set in the Victorian period. Many thanks to St Martin's Press for an ARC.