„The Crystal Stopper” is a ripping tale, with non-stop intrigue, action, twists and turns, and a healthy dose of Lupin humor. The story concerns the mysterious pursuit, appearances and disappearances and reappearances of a crystal decanter stopper. Why are so many people hot to get their hands on this seemingly worthless object? In a unique twist, the „villainous” Arsene Lupin becomes the hero of this novel when he faces a sly and blackmailing French deputy, Daubrecq, in a nail-biting adventure that seems to spell doom to Lupin and his gang. Lupin’s every move seems anticipated by Daubrecq and his success in saving his followers from the guillotine remains unsure to the very end. Can his marvelous intellect really have met its match in this truly evil deputy?