SPOILER ALERT
This looks to be the final installment of the Oxford Dogwalkers Mysteries. Anna Hopkins, Tansy Lavelle and Isadora Salzman agree to take part in a Murder Mystery Weekend to make up for cancellations. Anna's brother Tim's wife, Anjali, is just getting her business off the ground, and they want to help her. Costumed and playing parts in one of several mysteries being performed, they have a good time until a body is found in the fountain, believed at first to be a woman inebriated to the point of accidently falling. It turns out to be a murder. Lili Rosetti is then linked to Anna's father's former auction house, Hempels. Anna works up the courage to visit Hempels and meets David Fischer, a man who believes that Hempels is connected to the disappearance of a painting "A Study in Gold", a Vermeer, that was looted by the Nazis from his family. Thomas Kirchmann owns the gallery now, and it is very different from the chaotic place her father owned. His manager is Alexi Lenkov, and his PA is Alice Jinks. The auction house members do not believe such a painting ever existed.
Anna will begin to pursue the hunt for the painting as Chris Freemantle, her biological father, tells her that he had heard her father refer to the painting. Anna also believes that in finding the painting she may solve the crime of her family's killing. She again hears the name Dominic Scott-Nevelle, a former boyfriend, who she now thinks is a monster, having been told this by Alec Faber, now dead. It turns out Dominic has reformed and is not the one who had the painting. Another painting that had been owned by the Fischers was by Thoma, and had been photographed in a Nazi's home. The Fischer art had been given to Kirchmann's father for safekeeping, but his father's reputation as the righteous gentile was false apparently. He sold the art to the Nazis military unit that sought art during wwii, the Kunstschutz.
There is a very powerful group behind the hidden art that is now owned by others. When Anna decides to go back to Mortmead Hall where the mystery weekend was held and look for the painting which Lili had found, she is confronted by Alice Jinks. She finds the painting in the Maze, and Jinks takes it from her, locking her in the gazebo and setting it on fire. Tansy had gotten the message of where she had gone and the police with Liam Goodhart shows to save her and arrest the thieves and murderers. However, the powers behind the original theft are free. Their power was demonstrated in the ability to have art restitution expert Frau Brunner arrested in Innsbruck for suspected fraud.
Tansy and Anna had gone to Innsbruck to follow leads, and barely escape on the Orient Express to Paris, as Tansy's criminal father Frankie McVeigh secures them tickets on the hugely expensive and difficult to obtain transport.
All are safe in the end, Isadora marrying her long-time friend, Valentin. Jake McCaffrey, Anna;s boyfriend is setting up his own security business in Oxford and is going to participate in a dog rescue organization started by a friend. Somewhat slow in the beginning, it was a good read after all, and I only wish there were to be more.