813: Arsène Lupinin merkilliset seikkailut

by Maurice Leblanc

"813: Arsène Lupinin merkilliset seikkailut" by Maurice Leblanc is a detective novel published in 1910. When a wealthy South African diamond merchant is robbed and murdered, all evidence points to the gentleman-thief Arsène Lupin—his bloodied calling card is found pinned to the victim. Two more murders follow despite heavy police presence, leaving only cryptic clues: cigarette case initials "L.M." and a mysterious label bearing the number "813." This darker Lupin tale presents a complex, unsettling protagonist facing a formidable invisible enemy.