Inspector French's greatest case

"Inspector French's Greatest Case" by Freeman Wills Crofts is a mystery detective novel published in 1924. It introduces Inspector Joseph French of Scotland Yard, known for his methodical approach to solving crimes. When a diamond merchant's safe is robbed and an employee murdered in London's Hatton Garden, French must follow a complex trail across Europe. His investigation requires studying railway timetables, cracking ciphers, and pursuing leads from Southampton to Amsterdam, the Swiss Alps, and beyond. The case culminates in a race to Portugal and a shocking revelation. (This is an automatically generated summary.)