The Golden Triangle

The Golden Triangle (also known as The Return of Arsène Lupin) is a book by Maurice Leblanc, first published in 1917. It is the ninth book in the Arsène Lupin series. War veteran Captain Patrice Belval thwarts a kidnapping attempt on a nurse affectionately known as Little Mother Coralie. This heinous act is intertwined with a scheme to plunder France's gold reserves amid the chaos of the First World War, and it also unveils a mysterious connection between the two individuals.

To unravel these complexities and confront a relentless adversary, the captain's former comrades advise him to seek the help of Arsène Lupin, despite the widespread belief in Lupin's demise.

This is a translation by Alexander Teixeira de Mattos.