Flambeau, once the most famous criminal in France and later a very private detective in England, had long retired from both professions. Some say a career of crime had left him with too many scruples for a career of detection. Anyhow, after a life of romantic escapes and tricks of evasion, he had ended at what some might consider an appropriate address; a castle in Spain. [...] Flambeau had casually and almost abruptly fallen in love with a Spanish lady, married and brought up a large family on a Spanish estate, without displaying any apparent desire to stray again beyond its borders.