{"id":"obr:work:the-secret-of-the-old-clock","slug":"the-secret-of-the-old-clock","url":"https://openbookrank.com/en/book/the-secret-of-the-old-clock","urls":{"en":"https://openbookrank.com/en/book/the-secret-of-the-old-clock","fr":"https://openbookrank.com/fr/livre/the-secret-of-the-old-clock","sv":"https://openbookrank.com/sv/bok/the-secret-of-the-old-clock"},"title":"The Secret of the Old Clock","titles":{"en":"The Secret of the Old Clock","pl":"Tajemnica starego zegara","de":"The Secret of the Old Clock","es":"The Secret of the Old Clock","fr":"Alice détective","it":"The Secret of the Old Clock","pt":"The Secret of the Old Clock","nl":"The Secret of the Old Clock","sv":"Kitty som detektiv","uk":"Таємниця загадкових сходів"},"author":{"id":"obr:author:carolyn-keene","name":"Carolyn Keene","api":"https://openbookrank.com/api/v1/authors/carolyn-keene.json"},"year":1930,"pages":194,"originalLanguage":"en","identifiers":{"wikidata":"Q2070626","openLibrary":"OL39275W","isbn13":"9780760794739","isbns":["9780760794739","9780448195018"],"isbnByLanguage":{"en":"9780760794739"},"googleBooks":"ubqbEQAAQBAJ","hardcover":"the-secret-of-the-old-clock","amazon":{"en":"0760794731"}},"score":{"value":7.62,"scale":10,"ratings":159,"confidence":0.52,"rawAverage":7.6,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"openlibrary","name":"Open Library","average":8.27,"ratings":22,"weight":0.138},{"id":"hardcover","name":"Hardcover","average":7.5,"ratings":137,"weight":0.862}],"ranks":[{"category":"crime","name":"Crime & mystery","rank":277,"url":"https://openbookrank.com/en/ranking/crime","api":"https://openbookrank.com/api/v1/rankings/crime.json"}],"popularity":{"ratingsPercentile":83,"wikipediaPageviews":35971,"editions":41},"series":{"id":"obr:series:nancy-drew-mystery-stories","slug":"nancy-drew-mystery-stories","title":"Nancy Drew Mystery Stories","position":1,"volumes":3,"api":"https://openbookrank.com/api/v1/series/nancy-drew-mystery-stories.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:the-little-sister","title":"The Little Sister","author":"Raymond Chandler","score":7.62,"api":"https://openbookrank.com/api/v1/books/the-little-sister.json"},{"id":"obr:work:the-hidden-staircase","title":"The Hidden Staircase","author":"Carolyn Keene","score":7.62,"api":"https://openbookrank.com/api/v1/books/the-hidden-staircase.json"},{"id":"obr:work:unnatural-death","title":"Unnatural Death","author":"Dorothy L. Sayers","score":7.62,"api":"https://openbookrank.com/api/v1/books/unnatural-death.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:red-harvest","title":"Red Harvest","author":"Dashiell Hammett","score":7.63,"api":"https://openbookrank.com/api/v1/books/red-harvest.json"},{"id":"obr:work:4-50-from-paddington","title":"4.50 from Paddington","author":"Agatha Christie","score":7.63,"api":"https://openbookrank.com/api/v1/books/4-50-from-paddington.json"}],"citation":"According to BookRank (openbookrank.com), \"The Secret of the Old Clock\" by Carolyn Keene scores 7.62/10 from 159 reader ratings, #277 in Crime & mystery (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}