{"id":"obr:work:test-of-the-twins","slug":"test-of-the-twins","url":"https://openbookrank.com/en/book/test-of-the-twins","urls":{"en":"https://openbookrank.com/en/book/test-of-the-twins","fr":"https://openbookrank.com/fr/livre/test-of-the-twins","it":"https://openbookrank.com/it/libro/test-of-the-twins"},"title":"Test of the Twins","titles":{"en":"Test of the Twins","pl":"Próba bliźniaków","de":"Die Prüfung der Zwillinge","es":"El umbral del poder","fr":"L'Épreuve des jumeaux","it":"La sfida dei gemelli","nl":"De Beproeving van de Tweeling","sv":"Tvillingarnas sista prövning"},"author":{"id":"obr:author:margaret-weis","name":"Margaret Weis","api":"https://openbookrank.com/api/v1/authors/margaret-weis.json"},"year":1986,"pages":400,"originalLanguage":"en","identifiers":{"wikidata":"Q3824164","openLibrary":"OL73424W","isbn13":"9780880382670","isbns":["9780880382670"],"isbnByLanguage":{"en":"9780880382670"},"googleBooks":"FgRPEAAAQBAJ","hardcover":"test-of-the-twins","amazon":{"en":"0880382678"}},"score":{"value":8.08,"scale":10,"ratings":149,"confidence":0.503,"rawAverage":8.21,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[{"id":"openlibrary","name":"Open Library","average":8.63,"ratings":16,"weight":0.107},{"id":"hardcover","name":"Hardcover","average":8.17,"ratings":133,"weight":0.893}],"ranks":[{"category":"science-fiction","name":"Science fiction","rank":165,"url":"https://openbookrank.com/en/ranking/science-fiction","api":"https://openbookrank.com/api/v1/rankings/science-fiction.json"},{"category":"fantasy","name":"Fantasy","rank":481,"url":"https://openbookrank.com/en/ranking/fantasy","api":"https://openbookrank.com/api/v1/rankings/fantasy.json"}],"popularity":{"ratingsPercentile":82,"wikipediaPageviews":4540,"editions":37},"series":{"id":"obr:series:dragonlance-legends-trilogy","slug":"dragonlance-legends-trilogy","title":"Dragonlance: Legends Trilogy","position":3,"volumes":3,"api":"https://openbookrank.com/api/v1/series/dragonlance-legends-trilogy.json"},"awards":[],"adaptations":[],"similar":[{"id":"obr:work:life-the-universe-and-everything","title":"Life, the Universe and Everything","author":"Douglas Adams","score":8.08,"api":"https://openbookrank.com/api/v1/books/life-the-universe-and-everything.json"},{"id":"obr:work:lost-in-a-good-book","title":"Lost in a Good Book","author":"Jasper Fforde","score":8.08,"api":"https://openbookrank.com/api/v1/books/lost-in-a-good-book.json"},{"id":"obr:work:the-claw-of-the-conciliator","title":"The Claw of the Conciliator","author":"Gene Wolfe","score":8.07,"api":"https://openbookrank.com/api/v1/books/the-claw-of-the-conciliator.json"},{"id":"obr:work:snow-crash","title":"Snow Crash","author":"Neal Stephenson","score":8.1,"api":"https://openbookrank.com/api/v1/books/snow-crash.json"},{"id":"obr:work:dragonfly-in-amber","title":"Dragonfly in Amber","author":"Diana Gabaldon","score":8.06,"api":"https://openbookrank.com/api/v1/books/dragonfly-in-amber.json"},{"id":"obr:work:dragonsong","title":"Dragonsong","author":"Anne McCaffrey","score":8.11,"api":"https://openbookrank.com/api/v1/books/dragonsong.json"}],"citation":"According to BookRank (openbookrank.com), \"Test of the Twins\" by Margaret Weis scores 8.08/10 from 149 reader ratings, #165 in Science fiction (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}