"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. (This is an automatically generated summary.)
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