The central character, Francis Okewood, is a skilled and resourceful secret agent who works for British intelligence during the First World War and beyond. He is known for his intelligence, courage, and determination in carrying out various espionage missions and unraveling mysteries. The character of Okewood became quite popular during the early 20th century.The series is characterized by its thrilling and suspenseful plots, often involving espionage, espionage, international intrigue, and political machinations. As Okewood takes on different assignments, readers are introduced to a variety of intriguing characters and situations."Okewood of the Secret Service" novels were well-received during their time and contributed to the spy fiction genre, which was gaining popularity in the early 20th century. While the series may not be as widely known today as some other spy fiction works, it remains a notable part of the espionage literature of its era. Valentine Williams' creation of Francis Okewood was a significant contribution to the world of fictional secret agents and espionage adventures.