In "Monsieur Lecoq" by Émile Gaboriau, we are taken on a thrilling journey through the darkness of crime and the intricacies of detective work. Gaboriau expertly weaves together a complex web of clues and motives, keeping the reader guessing until the very end. Set in the mid-19th century, this novel is a prime example of early detective fiction, paving the way for the popular mystery genre we kno...