The House at Satan's Elbow, first published in 1965, is a detective story by John Dickson Carr

John Dickson Carr

John Dickson Carr was an American author of detective stories, who also published under the pen names Carter Dickson, Carr Dickson and Roger Fairbairn....

 featuring his series detective Gideon Fell

Gideon Fell

Doctor Gideon Fell is a fictional character created by John Dickson Carr. He is the protagonist of 23 novels from 1933 through 1967 as well as a few short stories. Carr was an American who lived most of his adult life in England; Dr. Fell is an Englishman who lives in the London suburbs.Dr...

. This novel

Novel

A novel is a book of long narrative in literary prose. The genre has historical roots both in the fields of the medieval and early modern romance and in the tradition of the novella. The latter supplied the present generic term in the late 18th century....

 is a mystery of the type known as a locked room mystery

Locked room mystery

The locked room mystery is a sub-genre of detective fiction in which a crime—almost always murder—is committed under apparently impossible circumstances. The crime in question typically involves a crime scene that no intruder could have entered or left, e.g., a locked room...

. It was dedicated to his fellow mystery writer Clayton Rawson

Clayton Rawson

Clayton Rawson was an American mystery writer, editor, and amateur magician. His four novels frequently invoke his great knowledge of stage magic and feature as their fictional detective The Great Merlini, a professional magician who runs a shop selling magic supplies...

 "because of our mutual interest in tricks and impossibilities".

Plot summary

Garret Anderson, a historian, has enjoyed an unexpected financial windfall when one of his historical biographies is turned into a smash-hit musical. At loose ends, he agrees to visit an old friend's family home in Hampshire, England to bear witness to some unusual happenings. A missing family will is at the heart of matters, but things are also complicated by someone who is playing the role of the ghost of Mr. Justice Wildfare, 18th century hanging judge

Hanging Judge

"Hanging judge" is an unofficial term for a judge who has gained renown for punishment by sentencing convicted criminals to death by hanging.More broadly, the term is applied to judges who have gained a reputation for imposing unusually harsh sentences, even in jurisdictions where the death penalty...

and family ancestor. When the head of the family is shot with a blank cartridge by a shadowy figure who vanishes through a locked window, and is later shot again, this time more seriously, Gideon Fell is called in to explain the bizarre events and bring them home to the criminal.