{"id":"obr:work:the-underground","slug":"the-underground","url":"https://openbookrank.com/en/book/the-underground","urls":{"en":"https://openbookrank.com/en/book/the-underground"},"title":"The Underground","titles":{"es":"La caverna","it":"Il sotterraneo","fr":"Le Piège","de":"Im Untergrund","en":"The Underground"},"author":{"id":"obr:author:katherine-applegate","name":"Katherine Applegate","api":"https://openbookrank.com/api/v1/authors/katherine-applegate.json"},"year":1998,"pages":168,"originalLanguage":null,"identifiers":{"wikidata":"Q7771370","openLibrary":null,"isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"the-underground-1998","amazon":null},"score":{"value":null,"scale":10,"ratings":29,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":61,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:animorphs","slug":"animorphs","title":"Animorphs","position":17,"volumes":47,"api":"https://openbookrank.com/api/v1/series/animorphs.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"The Underground\" by Katherine Applegate 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"}