{"id":"obr:work:the-black-circle","slug":"the-black-circle","url":"https://openbookrank.com/en/book/the-black-circle","urls":{"en":"https://openbookrank.com/en/book/the-black-circle","pt":"https://openbookrank.com/pt/livro/the-black-circle"},"title":"The Black Circle","titles":{"es":"El círculo negro","fr":"Mystère au Kremlin","it":"Il segreto degli zar","sv":"Den svarta cirkeln","en":"The Black Circle","pt":"O Círculo Negro"},"author":{"id":"obr:author:null","name":"Jude Watson","api":"https://openbookrank.com/api/v1/authors/null.json"},"year":2009,"pages":null,"originalLanguage":null,"identifiers":{"wikidata":"Q2890939","openLibrary":null,"isbn13":"9780545060455","isbns":["9780545060455"],"isbnByLanguage":{},"googleBooks":null,"hardcover":null,"amazon":null},"score":{"value":null,"scale":10,"ratings":0,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":0,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:the-39-clues","slug":"the-39-clues","title":"The 39 Clues","position":null,"volumes":12,"api":"https://openbookrank.com/api/v1/series/the-39-clues.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"The Black Circle\" by Jude Watson 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"}