•Why it earns a slot
This collection introduced Arsène Lupin to the world and established the gentleman-thief as a durable archetype of popular fiction, notable for inverting the detective story so that the criminal is the witty, sympathetic protagonist who consistently humiliates the forces of law.
Nine interlocking stories follow Arsène Lupin, a charming French thief of genius who robs châteaux, escapes prison through elaborate imposture, recovers stolen jewels on his own terms, and outwits every detective sent against him. Lupin operates with theatrical flair, often announcing his crimes in advance, returning stolen goods when it suits him, and publishing self-congratulatory accounts in the press. The collection ends with the arrival of Sherlock Holmes, who deciphers Lupin's methods but finds his quarry already gone, with only a returned stolen watch as a parting joke.
This distillation is written from the freely available original, which is always the better read when you have the time: gutenberg.org.