{"id":"obr:work:the-secret-adversary","slug":"the-secret-adversary","url":"https://openbookrank.com/en/book/the-secret-adversary","urls":{"en":"https://openbookrank.com/en/book/the-secret-adversary","pl":"https://openbookrank.com/pl/ksiazka/the-secret-adversary","de":"https://openbookrank.com/de/buch/the-secret-adversary","es":"https://openbookrank.com/es/libro/the-secret-adversary","fr":"https://openbookrank.com/fr/livre/the-secret-adversary","it":"https://openbookrank.com/it/libro/the-secret-adversary","nl":"https://openbookrank.com/nl/boek/the-secret-adversary","sv":"https://openbookrank.com/sv/bok/the-secret-adversary","ja":"https://openbookrank.com/ja/hon/the-secret-adversary","pt":"https://openbookrank.com/pt/livro/the-secret-adversary"},"title":"The Secret Adversary","titles":{"en":"The Secret Adversary","pl":"Tajemniczy przeciwnik","de":"Ein gefährlicher Gegner","es":"El misterioso señor Brown","fr":"Mr Brown","it":"Avversario segreto","pt":"O adversário secreto","nl":"De geheime tegenstander","sv":"Den hemlighetsfulle motståndaren","uk":"Таємничий суперник","ja":"秘密機関","ko":"비밀 결사","zh":"隐身魔鬼","zh-hant":"暗藏殺機"},"author":{"id":"obr:author:agatha-christie","name":"Agatha Christie","api":"https://openbookrank.com/api/v1/authors/agatha-christie.json"},"year":1922,"pages":254,"originalLanguage":"en","identifiers":{"wikidata":"Q617379","openLibrary":"OL471789W","isbn13":"9781541087040","isbns":["9781541087040","9781541239913","9782846343961"],"isbnByLanguage":{"en":"9781541087040","es":"9781541239913","fr":"9782846343961"},"googleBooks":"mioCDgAAQBAJ","hardcover":"the-secret-adversary","amazon":{"en":"1541087046","es":"1541239911","fr":"2846343969"}},"score":{"value":7.58,"scale":10,"ratings":226,"confidence":0.606,"rawAverage":7.54,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"openlibrary","name":"Open Library","average":7.54,"ratings":35,"weight":0.155},{"id":"hardcover","name":"Hardcover","average":7.54,"ratings":191,"weight":0.845}],"ranks":[{"category":"classics","name":"Classics","rank":259,"url":"https://openbookrank.com/en/ranking/classics","api":"https://openbookrank.com/api/v1/rankings/classics.json"},{"category":"crime","name":"Crime & mystery","rank":313,"url":"https://openbookrank.com/en/ranking/crime","api":"https://openbookrank.com/api/v1/rankings/crime.json"}],"popularity":{"ratingsPercentile":87,"wikipediaPageviews":41708,"editions":800},"series":{"id":"obr:series:tommy-tuppence-mysteries","slug":"tommy-tuppence-mysteries","title":"Tommy & Tuppence Mysteries","position":1,"volumes":5,"api":"https://openbookrank.com/api/v1/series/tommy-tuppence-mysteries.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:the-maltese-falcon","title":"The Maltese Falcon","author":"Dashiell Hammett","score":7.58,"api":"https://openbookrank.com/api/v1/books/the-maltese-falcon.json"},{"id":"obr:work:the-big-sleep","title":"The Big Sleep","author":"Raymond Chandler","score":7.61,"api":"https://openbookrank.com/api/v1/books/the-big-sleep.json"},{"id":"obr:work:hercule-poirots-christmas","title":"Hercule Poirot's Christmas","author":"Agatha Christie","score":7.61,"api":"https://openbookrank.com/api/v1/books/hercule-poirots-christmas.json"},{"id":"obr:work:death-in-the-clouds","title":"Death in the Clouds","author":"Agatha Christie","score":7.55,"api":"https://openbookrank.com/api/v1/books/death-in-the-clouds.json"},{"id":"obr:work:the-mysterious-affair-at-styles","title":"The Mysterious Affair at Styles","author":"Agatha Christie","score":7.63,"api":"https://openbookrank.com/api/v1/books/the-mysterious-affair-at-styles.json"},{"id":"obr:work:the-body-in-the-library","title":"The Body in the Library","author":"Agatha Christie","score":7.53,"api":"https://openbookrank.com/api/v1/books/the-body-in-the-library.json"}],"citation":"According to BookRank (openbookrank.com), \"The Secret Adversary\" by Agatha Christie scores 7.58/10 from 226 reader ratings, #259 in Classics (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}