每年5月的第一个星期三,在巴黎郊外的戴高乐赛马场照例要举行一场4岁马大奖赛。柯克博士年轻时曾在巴黎国际刑警组织任职。那时他精力充沛,兴趣广泛,是赛马场的常客。夏姆男爵就是在那里认识柯克博士的。男爵一向钦佩这位大侦探的智慧,听说他正在巴黎办案,就让仆人把一张赛马票 On the first Wednesday of May each year, a 4-year-old horse grand prix is ​​to be held on the Charles de Gaulle racecourse outside Paris. Dr. Kirk worked for Interpol in Paris as a young man. At that time, he was energetic and had a wide range of interests and was a frequent visitor to the racecourse. Where Baron Sham met Dr. Kirk. The Baron admired the wisdom of the great detective, heard that he was handling the case in Paris, let the servant to a horse race ticket