Final Proof; Or, The Value of Evidence

The collection follows Mr. Barnes, a professional detective, and Robert Leroy Mitchel, an amateur investigator, as they tackle a series of interrelated criminal puzzles that occurred between earlier adventures. Each tale centers on close observation and forensic reasoning: bodies recovered from water, mysterious identifications, stolen gems and jewels, abductions, forgery, and other deceptions. The narratives emphasize the careful weighing of physical clues, autopsy findings, and documentary evidence, showing how small details resolve apparently insoluble cases and how proof alters initial assumptions about guilt, identity, and motive.