{"id":"obr:work:ninth-key","slug":"ninth-key","url":"https://openbookrank.com/en/book/ninth-key","urls":{"en":"https://openbookrank.com/en/book/ninth-key","pt":"https://openbookrank.com/pt/livro/ninth-key"},"title":"Ninth Key","titles":{"en":"Ninth Key","pl":"Dziewiąty klucz","fr":"Le neuvième arcane","pt":"Ninth Key","sv":"Det nionde kortet"},"author":{"id":"obr:author:meg-cabot","name":"Meg Cabot","api":"https://openbookrank.com/api/v1/authors/meg-cabot.json"},"year":2001,"pages":null,"originalLanguage":null,"identifiers":{"wikidata":"Q13582658","openLibrary":"OL492815W","isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"ninth-key","amazon":null},"score":{"value":7.81,"scale":10,"ratings":94,"confidence":0.39,"rawAverage":7.8,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"hardcover","name":"Hardcover","average":7.8,"ratings":94,"weight":1}],"ranks":[{"category":"young-adult","name":"Young adult","rank":224,"url":"https://openbookrank.com/en/ranking/young-adult","api":"https://openbookrank.com/api/v1/rankings/young-adult.json"}],"popularity":{"ratingsPercentile":76,"wikipediaPageviews":0,"editions":2},"series":{"id":"obr:series:the-mediator","slug":"the-mediator","title":"The Mediator","position":null,"volumes":7,"api":"https://openbookrank.com/api/v1/series/the-mediator.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:reunion","title":"Reunion","author":"Meg Cabot","score":7.81,"api":"https://openbookrank.com/api/v1/books/reunion.json"},{"id":"obr:work:the-wind-singer","title":"The Wind Singer","author":"William Nicholson","score":7.79,"api":"https://openbookrank.com/api/v1/books/the-wind-singer.json"},{"id":"obr:work:freak-the-mighty","title":"Freak the Mighty","author":"W. R. Philbrick","score":7.83,"api":"https://openbookrank.com/api/v1/books/freak-the-mighty.json"},{"id":"obr:work:milkweed","title":"Milkweed","author":"Jerry Spinelli","score":7.78,"api":"https://openbookrank.com/api/v1/books/milkweed.json"},{"id":"obr:work:the-wish-list-infinite","title":"The Wish List","author":"Eoin Colfer","score":7.78,"api":"https://openbookrank.com/api/v1/books/the-wish-list-infinite.json"},{"id":"obr:work:a-walk-to-remember","title":"A Walk to Remember","author":"Nicholas Sparks","score":7.78,"api":"https://openbookrank.com/api/v1/books/a-walk-to-remember.json"}],"citation":"According to BookRank (openbookrank.com), \"Ninth Key\" by Meg Cabot scores 7.81/10 from 94 reader ratings, #224 in Young adult (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}