The Problem of the Green Capsule

The Problem of the Green Capsule showcases John Dickson Carr’s mastery of the locked-room and impossible-crime subgenres, presenting a puzzling death surrounded by baffling clues and ingenious solutions.

Carr’s works are notable for their theatrical plotting, richly atmospheric settings, and the presence of brilliant amateur sleuths or detectives who unravel apparently supernatural crimes.

This title is celebrated among Golden Age aficionados for its inventive mechanics and engrossing mystery.

In the podcast, it’s mentioned both as an exemplar of high-quality Golden Age detection and as the subject of Caroline’s newsletter review inspired by Jim’s praise.