The Adventure of the Deptford Horror is a Sherlock Holmes

Sherlock Holmes

Sherlock Holmes is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. The fantastic London-based "consulting detective", Holmes is famous for his astute logical reasoning, his ability to take almost any disguise, and his use of forensic science skills to solve...

 story by Adrian Conan Doyle

Adrian Conan Doyle

Adrian Malcolm Conan Doyle was the youngest son of Sir Arthur Conan Doyle and his second wife Jean, Lady Conan Doyle. He had two siblings, a sister, Jean, and a brother, Denis....

. The story was published in the 1954 collection, The Exploits of Sherlock Holmes

The Exploits of Sherlock Holmes

The Exploits of Sherlock Holmes is a short story collection written by Adrian Conan Doyle and John Dickson Carr, first published in 1954.The stories contained in the collection are:*"The Adventure of the Seven Clocks"*"The Adventure of the Gold Hunter"...

.

Holmes and Watson are called to a house in Deptford

Deptford

Deptford is a district of south London, England, located on the south bank of the River Thames. It is named after a ford of the River Ravensbourne, and from the mid 16th century to the late 19th was home to Deptford Dockyard, the first of the Royal Navy Dockyards.Deptford and the docks are...

, due to the concerns of a young woman about her safety. Several of her relatives have died in the past few years of heart attacks

Myocardial infarction

Myocardial infarction or acute myocardial infarction , commonly known as a heart attack, results from the interruption of blood supply to a part of the heart, causing heart cells to die...

. A relative who trains canaries

Domestic Canary

The Domestic Canary, often simply known as the canary, is a domesticated form of the wild Canary, a small songbird in the finch family originating from the Macaronesian Islands ....

 also lives in the house. Holmes is not able to detect anything amiss until he and Watson are en route home, but he suddenly solves the mystery and returns to Deptford to save the life of the young woman from a death by heart failure.

For a time, we sat in silence. Our cab had reached the beginnings of the City and I was gazing out of the window, my fingers drumming idly on the half–lowered pane, which was already befogged with moisture, when my thoughts were recalled by a sharp ejaculation from my companion. He was staring fixedly over my shoulder.

"The glass," he muttered.

Over the clouded surface there now lay an intricate tracery of whorls and lines where my finger had wandered aimlessly.

Holmes clapped his hand to his brow and, throwing open the other window, he shouted an order to the cabby.

This apocryphal story was inspired by the mention in "The Adventure of Black Peter

The Adventure of Black Peter

"The Adventure of Black Peter" is a Sherlock Holmes story by Arthur Conan Doyle. This tale is in the collection The Return of Sherlock Holmes, but was published originally in 1904 in the Strand Magazine and Collier's.-Plot summary:...

" of Holmes's "arrest of Wilson, the notorious canary-trainer, which removed a plague-spot from the East-End of London." In this story, Wilson is not arrested, but this discrepancy is explained as an error due to Dr Watson.