The Judas Window

A locked-room mystery featuring Sir Henry Merrivale, this Golden Age detective novel centers on a murder trial at London's Old Bailey. James Answell stands accused of killing his future father-in-law in a study sealed from the inside, with no apparent way for the killer to enter or exit. Sir Henry Merrivale takes on Answell's defense, attempting to prove his client's innocence despite overwhelming physical evidence and witness testimony. The investigation must reconstruct the events of a single night when the victim was found dead from an arrow wound in his heavily secured private study. Layers of deception and misdirection emerge as Merrivale works to solve not only the murder but also the mechanical puzzle of how it was accomplished in a locked room. The tension builds through courtroom drama and behind-the-scenes detective work as time runs short for the accused. The novel exemplifies the intellectual challenge central to Golden Age detective fiction while exploring themes of perception versus reality and the limits of circumstantial evidence. It stands as one of Carter Dickson's most intricate puzzles in the Sir Henry Merrivale series.

Readers call this one of the best "impossible crime" mysteries, with many highlighting the courtroom drama aspects. Reviews emphasize the clever locked-room puzzle and how fairly the clues are presented. Readers appreciated: - The detailed trial scenes and legal procedures - Sir Henry Merrivale's character development - The explanation's plausibility - The blend of humor with serious detective work Common criticisms: - Slow pacing in the middle sections - Some found the courtroom scenes too lengthy - Period-specific language can be challenging Ratings: Goodreads: 4.13/5 (1,200+ ratings) Amazon: 4.4/5 (150+ ratings) Notable reader comments: "The trial format adds tension that many locked-room mysteries lack" - Goodreads reviewer "Merrivale shines brightest when he's in court" - Amazon reviewer "The solution is complex but makes perfect sense when revealed" - LibraryThing reviewer

The Seven Deaths of Evelyn Hardcastle by Stuart Turton A murder mystery set in a manor house combines impossible crime elements with a locked-room puzzle as the protagonist experiences the same day through different characters' perspectives.

The Tokyo Zodiac Murders by Soji Shimada A detective investigates a series of locked-room murders from the 1930s that involve complex mathematical calculations and seemingly impossible circumstances.

The Three Coffins by John Dickson Carr A killer appears to walk through walls to commit murder in a snow-covered street, presenting a classic locked-room mystery with detailed explanations of how such crimes can be executed.

The Mystery of the Yellow Room by Gaston Leroux A young journalist investigates an attack in a locked room where no perpetrator could have entered or escaped, establishing one of the first impossible crime novels in mystery literature.

The Honjin Murders by Seishi Yokomizo A newlywed couple is found dead in a locked room with a bloody samurai sword outside in the snow, creating a puzzle that merges Japanese culture with classic locked-room mechanics.

🔍 "The Judas Window" was published in 1938 under Carter Dickson, a pseudonym of John Dickson Carr, who is considered one of the greatest writers of "locked-room" mysteries. ⚖️ The novel features Sir Henry Merrivale's only appearance as a barrister in court, making it unique among the 23 novels in which he appears. 🏛️ The term "Judas Window" refers to a concealed peephole or small window used for secret observation - a device that becomes central to the murder plot. 🎭 The book was adapted into a successful stage play titled "The Empty Room," which ran in London's West End in 1940. 📚 The novel is frequently cited by mystery critics and authors as one of the finest examples of the impossible crime genre, appearing on multiple "best of" lists including the 1981 list of best locked room mysteries by experts Edward D. Hoch and Julian Symons.