John Thorndyke's Cases / related by Christopher Jervis and edited by R. Austin Freeman

A collection of short crime cases recounted by a medical narrator that follow a forensic practitioner’s methodical investigations. Each story frames a puzzling incident—strange footprints, an unexplained key, a coded message, unusual personal effects, and an uncommon weapon—and shows how laboratory tests, microscopy, chemical analysis, and careful observation resolve apparent impossibilities. The author stresses authentic experiments and practicable techniques, often illustrating procedures and specimens, and transforms mundane clues into decisive evidence through experiment, reconstruction, and logical inference.