The Crystal Stopper (1912) is a novel by Maurice Leblanc. The fifth novel in Leblanc's legendary series finds its hero struggling to overcome an unusually capable enemy, the despicable Deputy Daubrecq. Partly based on the life of French anarchist Marius Jacob, Ars ne Lupin first appeared in print in 1905 as an answer to Sir Arthur Conan Doyle's Sherlock Holmes. Blending crime fiction, fantasy, and mystery, Leblanc crafts original and entertaining...