{"id":"obr:work:dark-challenge","slug":"dark-challenge","url":"https://openbookrank.com/en/book/dark-challenge","urls":{"en":"https://openbookrank.com/en/book/dark-challenge"},"title":"Dark Challenge","titles":{"es":"El desafío oscuro","fr":"Désirs suprêmes","it":"La metamorfosi","en":"Dark Challenge","de":"Dunkle Sehnsucht des Verlangens"},"author":{"id":"obr:author:christine-feehan","name":"Christine Feehan","api":"https://openbookrank.com/api/v1/authors/christine-feehan.json"},"year":2000,"pages":384,"originalLanguage":null,"identifiers":{"wikidata":"Q5223156","openLibrary":null,"isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"dark-challenge","amazon":null},"score":{"value":null,"scale":10,"ratings":25,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":59,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:dark-series","slug":"dark-series","title":"Dark Series","position":5,"volumes":16,"api":"https://openbookrank.com/api/v1/series/dark-series.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Dark Challenge\" by Christine Feehan 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"}