Stories / His Last Bow · 1893
The Adventure of the Cardboard Box
Two severed ears in salt arrive by post at the wrong sister's house; ear anatomy — a Holmes monograph subject — names the family.
✅ Public domain — read, share, and adapt freely.
⚠️ Spoilers below. The analysis discusses the solution, including who did it and how it's found out.
Summary & analysis
Miss Susan Cushing receives a parcel of two severed human ears packed in salt — a grotesque mistake, it seems, or a medical students' prank aimed at a respectable spinster.
Holmes studies the ears themselves — one a woman's, one a man's — and, drawing on his own monograph on the variation of the human ear, notes that one matches Miss Cushing's own family anatomy. The parcel was addressed to the wrong Cushing sister.
Jim Browner, a jealous husband driven mad by a scheming sister-in-law, killed his wife and her lover and posted their ears to the sister who poisoned his marriage — the parcel misdelivered by an initial. A tragedy of drink and jealousy, read from cartilage.
Deeper reading
Anatomy as evidence
The Cardboard Box turns on Holmes reading severed ears — their shape, their family likeness — to identify a crime of jealousy and misdelivery. Doyle draws on the real Victorian science of ear morphology, and the grisly parcel opens onto a bleak domestic tragedy of love and drink. It is among the darkest and most emotionally raw of the tales.
A meditation on suffering
Famously, the story closes on Holmes brooding aloud on the meaning of such misery — a rare, almost philosophical note of despair. Its handling of adultery led to its being dropped from some early editions, and its sombre power comes precisely from that unusual willingness to sit with the sadness rather than tidy it away.
Play this story
Free, built on this case's own facts — no sign-up, nothing to install.
Techniques on display
Observation
Reading occupation, history, and character from visible detail.
In this story: Ear anatomy cracks the case: heredity in the shape of an ear ties one victim to the Cushing family, redirecting the parcel to its intended, guilty recipient.
Deduction & inference
Chaining evidence into conclusions on a living board.
In this story: From the knots, the salt, the tar-stained string and a sailor's packing, Holmes reads a seafaring man in torment before a single name is spoken.
Practise what this story preaches: every technique above links to a tool or game built on the same method. The best way to learn the canon is to reason along with it.