# Loyalty and Betrayal in The Crystal Stopper

> Theme guide for The Crystal Stopper by Maurice Leblanc.

Lupin's gang is built on loyalty, but the theft of the crystal stopper, the double-crossing of Growler and Masher, and Gilbert's secret motives highlight the fragility of trust.

## Where it surfaces

- [XII: The Scaffold](https://www.betterreads.dev/discover/the_crystal_stopper_se/chapters/xii-the-scaffold): Gilbert's unwavering faith in Lupin contrasts with Vaucheray's cynical remark about the crystal stopper, exploring loyalty among accomplices.

## Links

- HTML: https://www.betterreads.dev/discover/the_crystal_stopper_se/themes/loyalty_and_betrayal
- Themes index: https://www.betterreads.dev/discover/the_crystal_stopper_se/themes