{"id":"obr:work:sign-of-the-moon","slug":"sign-of-the-moon","url":"https://openbookrank.com/en/book/sign-of-the-moon","urls":{"en":"https://openbookrank.com/en/book/sign-of-the-moon"},"title":"Sign of the Moon","titles":{"fr":"L'Empreinte de la lune","pl":"Znak księżyca","de":"Spur des Mondes","es":"Señales de la luna","nl":"Spoor van de maan","sv":"Månens tecken","en":"Sign of the Moon"},"author":{"id":"obr:author:erin-hunter","name":"Erin Hunter","api":"https://openbookrank.com/api/v1/authors/erin-hunter.json"},"year":null,"pages":358,"originalLanguage":"en","identifiers":{"wikidata":"Q124988920","openLibrary":"OL17455355W","isbn13":"9781536441758","isbns":["9781536441758"],"isbnByLanguage":{},"googleBooks":"IP1szQEACAAJ","hardcover":null,"amazon":null},"score":{"value":null,"scale":10,"ratings":37,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":64,"wikipediaPageviews":0,"editions":0},"series":{"id":"obr:series:warriors","slug":"warriors","title":"Warriors","position":22,"volumes":30,"api":"https://openbookrank.com/api/v1/series/warriors.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Sign of the Moon\" by Erin Hunter 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"}