{"id":"obr:work:les-7-boules-de-cristal","slug":"les-7-boules-de-cristal","url":"https://openbookrank.com/en/book/les-7-boules-de-cristal","urls":{"en":"https://openbookrank.com/en/book/les-7-boules-de-cristal","pl":"https://openbookrank.com/pl/ksiazka/les-7-boules-de-cristal","de":"https://openbookrank.com/de/buch/les-7-boules-de-cristal","es":"https://openbookrank.com/es/libro/les-7-boules-de-cristal","fr":"https://openbookrank.com/fr/livre/les-7-boules-de-cristal","nl":"https://openbookrank.com/nl/boek/les-7-boules-de-cristal","sv":"https://openbookrank.com/sv/bok/les-7-boules-de-cristal","ja":"https://openbookrank.com/ja/hon/les-7-boules-de-cristal","pt":"https://openbookrank.com/pt/livro/les-7-boules-de-cristal","zh-hant":"https://openbookrank.com/zh-hant/tushu/les-7-boules-de-cristal"},"title":"The Seven Crystal Balls","titles":{"es":"Las 7 bolas de cristal","fr":"Les Sept boules de cristal","sv":"De sju kristallkulorna","pt":null,"en":"The Seven Crystal Balls","pl":"Siedem kryształowych kul","de":"Die sieben Kristallkugeln","it":"Le sette sfere di cristallo","nl":"De 7 kristallen bollen","ja":"ななつの水晶球","ko":null,"zh":"七个水晶球","zh-hant":"七個水晶球"},"author":{"id":"obr:author:herge","name":"Hergé","api":"https://openbookrank.com/api/v1/authors/herge.json"},"year":1948,"pages":62,"originalLanguage":"fr","identifiers":{"wikidata":"Q934536","openLibrary":"OL151078W","isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":null,"amazon":null},"score":{"value":null,"scale":10,"ratings":5,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":45,"wikipediaPageviews":19361,"editions":45},"series":{"id":"obr:series:the-adventures-of-tintin","slug":"the-adventures-of-tintin","title":"The Adventures of Tintin","position":13,"volumes":24,"api":"https://openbookrank.com/api/v1/series/the-adventures-of-tintin.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"The Seven Crystal Balls\" by Hergé but does not score it: it has fewer than 50 reader ratings (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}