{"id":"obr:work:13","slug":"13","url":"https://openbookrank.com/en/book/13","urls":{"en":"https://openbookrank.com/en/book/13"},"title":"13","titles":{"en":"13","es":"13"},"author":{"id":"obr:author:kelley-armstrong","name":"Kelley Armstrong","api":"https://openbookrank.com/api/v1/authors/kelley-armstrong.json"},"year":2012,"pages":null,"originalLanguage":null,"identifiers":{"wikidata":"Q23419122","openLibrary":"OL9769923W","isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"13","amazon":null},"score":{"value":null,"scale":10,"ratings":2,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":40,"wikipediaPageviews":0,"editions":4},"series":{"id":"obr:series:women-of-the-otherworld","slug":"women-of-the-otherworld","title":"Women of the Otherworld","position":13,"volumes":13,"api":"https://openbookrank.com/api/v1/series/women-of-the-otherworld.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"13\" by Kelley Armstrong 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"}