"Okewood of the Secret Service" by Valentine Williams is a novel likely written in the early 20th century during the tumult of World War I. The story appears to revolve around themes of espionage and murder, centered on the character of Arthur Mackwayte, a once-popular music hall performer, and his daughter, Barbara. Following a performance, they find themselves entangled in a mysterious murder at their home, leading to unraveling dangerous secrets that could have far-reaching implications. The opening of the book introduces Mr. Arthur Mackwayte and his daughter Barbara as they navigate the challenges of a struggling performer amidst the changing landscape of entertainment due to the war. After an unexpected call to fill a role at the Palaceum Theatre, they return home only to find themselves thrust into a dark mystery when Mr. Mackwayte is found murdered. The narrative builds tension as the characters face personal and societal struggles while hints of a deeper espionage plot begin to surface connected to the glamorous yet menacing figure of Nur-el-Din, a celebrated dancer linked to the unfolding tragedy. This sets the stage for an intricate tale of deception, loyalty, and the perilous world of spies during a time of war. (This is an automatically generated summary.)