"L'Aiguille Creuse" is a novel written by the French author Maurice Leblanc. It was first published in 1909 and is part of the famous Arsène Lupin series, featuring the charming and cunning gentleman thief, Arsène Lupin. In this novel, Arsène Lupin embarks on an intricate adventure to uncover the secrets of the Hollow Needle (L'Aiguille Creuse), which is rumored to hold both immense riches and hidden historical knowledge. Lupin's pursuit takes him across France, leading to encounters with various characters, including detectives who are determined to capture him. Maurice Leblanc's "L'Aiguille Creuse" combines elements of mystery, adventure, and suspense. It showcases the clever and resourceful character of Arsène Lupin, who is both a master of disguise and a gentleman thief with a moral code. The novel is celebrated for its intriguing plot and Lupin's charismatic presence.