Messenger of Truth by Jacqueline Winspear

London, 1931. When controversial artist Nick Bassington-Hope is found dead on the eve of his much-anticipated exhibition, his twin sister Georgina refuses to believe it was an accident. She turns to Maisie Dobbs, psychologist and investigator, whose own experiences of the Great War lend her a keen understanding of human wounds — both visible and hidden. As Maisie delves into the case, she uncovers a web of secrets buried beneath the glittering world of art and privilege, where truth and deception intertwine. Set against a Britain still haunted by war, Messenger of Truth is a haunting mystery about family, sacrifice, and the price of honesty.