The Judas Window

The Judas Window (also published as The Crossbow Murder)
First US edition
AuthorJohn Dickson Carr
LanguageEnglish
SeriesHenry Merrivale
GenreMystery fiction, Detective fiction
PublisherMorrow (US, 1938)
Heinemann (UK, 1938)
Publication date
1938
Publication placeUnited Kingdom
Media typePrint (Hardback & Paperback)
Pages191
OCLC16651698
813/.52 19
LC ClassPS3505.A763 J83 1987
Preceded byThe Ten Teacups aka The Peacock Feather Murders (1937) 
Followed byDeath in Five Boxes (1939) 

The Judas Window (also published as The Crossbow Murder) is a famous locked room mystery novel by the American writer John Dickson Carr, writing under the name of Carter Dickson, published in 1938 and featuring detective Sir Henry Merrivale.

In a poll of 17 mystery writers and reviewers, this novel was voted as the fifth best locked room mystery of all time. The Hollow Man also by John Dickson Carr was voted the best.