{"schema_version":"bf_book_companion_v1","release_id":"20260414T102527Z","book":{"amazon_purchase_url":"https://www.amazon.com/dp/1250217288?tag=bookfrontier-20","asin":"1250217288","authors":["TJ Klune"],"book_id":"9781250217288","canonical_url":"https://bookfrontier.com/books/9781250217288","cover_image_url":"https://img.bookfrontier.com/9781250217288.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","description":"A NEW YORK TIMES, USA TODAY, and WASHINGTON POST BESTSELLER! A 2021 Alex Award winner! The 2021 RUSA Reading List: Fantasy Winner! An Indie Next Pick! One of Publishers Weekly 's \"Most Anticipated Books of Spring 2020\" One of Book Riot ’s “20 Must-Read Feel-Good Fantasies” Lambda Literary Award-winning author TJ Klune’s bestselling, breakout contemporary fantasy that's \" 1984 meets The Umbrella Academy with a pinch of Douglas Adams thrown in.\" (Gail Carriger, New York Times bestselling author of Soulless ) Linus Baker is a by-the-book case worker in the Department in Charge of Magical Youth. He's tasked with determining whether six dangerous magical children are likely to bring about the end of the world. Arthur Parnassus is the master of the orphanage. He would do anything to keep the children safe, even if it means the world will burn. And his secrets will come to light. The House in the Cerulean Sea is an enchanting love story, masterfully told, about the profound experience of discovering an unlikely family in an unexpected place—and realizing that family is yours.","forthcoming":false,"isbn13":"9781250217288","publication_date":"20200317","publisher":"Tor/Forge","slug":"the-house-in-the-cerulean-sea","subtitle":"","title":"The House in the Cerulean Sea"},"discovery":{"categories":{"all":[{"bisac_code":"FIC009160","confidence_band":"medium","label":"Cozy Fantasy","score":0.8077,"source":"bisac_hint_model"},{"bisac_code":"FIC009010","confidence_band":"medium","label":"Contemporary Fantasy","score":0.8021,"source":"bisac_hint_model"},{"bisac_code":"YAF019040","confidence_band":"medium","label":"Historical YA Fantasy","score":0.7997,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"FIC009160","confidence_band":"medium","label":"Cozy Fantasy","score":0.8077,"source":"bisac_hint_model"},{"bisac_code":"FIC009010","confidence_band":"medium","label":"Contemporary Fantasy","score":0.8021,"source":"bisac_hint_model"},{"bisac_code":"YAF019040","confidence_band":"medium","label":"Historical YA Fantasy","score":0.7997,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"FIC009010","confidence_band":"high","label":"Contemporary Fantasy","score":1,"source":"onix_publisher_code"},{"bisac_code":"FIC009080","confidence_band":"high","label":"Humorous Fantasy","score":1,"source":"onix_publisher_code"},{"bisac_code":"FIC011000","confidence_band":"high","label":"Gay Fiction","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Cozy Fantasy","score":0.8077,"slug":"cozy-fantasy"},{"label":"Contemporary Fantasy","score":0.8021,"slug":"contemporary-fantasy"},{"label":"Historical YA Fantasy","score":0.7997,"slug":"historical-ya-fantasy"}],"reader_fit":["Readers who want fantasy that feels like a warm blanket: gentle worldbuilding, found family, and emotional clarity.","Good for fans of tender speculative fiction like Howl's Moving Castle or The Long Way to a Small, Angry Planet.","Book clubs that want a genuinely uplifting read with discussable themes around bureaucracy, prejudice, and chosen family."],"related_lists":[{"intro":"","slug":"shelf-fic009010-fantasy-contemporary","title":"Fantasy Contemporary Books","url":"https://bookfrontier.com/lists/shelf-fic009010-fantasy-contemporary"},{"intro":"These speculative picks treat queerness as foundational world logic, not decorative subplot. Across science fiction and fantasy, identity, social structure, and desire are embedded directly into how the worlds operate, making the worldbuilding sharper and more coherent.","slug":"between-the-shelves-queer-sff","title":"Queer Sff Books","url":"https://bookfrontier.com/lists/between-the-shelves-queer-sff"}],"series":null,"similar_books":[{"authors":["TJ Klune"],"book_id":"9781250394545","cover_image_url":"https://img.bookfrontier.com/9781250394545.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":23.2852,"title":"The House in the Cerulean Sea","url":"https://bookfrontier.com/books/9781250394545"},{"authors":["Tj Klune"],"book_id":"9781250217394","cover_image_url":"https://img.bookfrontier.com/9781250217394.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":19.9946,"title":"Under the Whispering Door","url":"https://bookfrontier.com/books/9781250217394"},{"authors":["Samantha Sotto Yambao"],"book_id":"9780593724996","cover_image_url":"https://img.bookfrontier.com/9780593724996.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":17.2567,"title":"Water Moon","url":"https://bookfrontier.com/books/9780593724996"},{"authors":["Erin Morgenstern"],"book_id":"9780307744432","cover_image_url":"https://img.bookfrontier.com/9780307744432.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":17.2116,"title":"The Night Circus","url":"https://bookfrontier.com/books/9780307744432"},{"authors":["Kate Quinn"],"book_id":"9780063244801","cover_image_url":"https://img.bookfrontier.com/9780063244801.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":15.7013,"title":"The Astral Library","url":"https://bookfrontier.com/books/9780063244801"},{"authors":["Cindy Kay","Ryka Aoki","Macmillan Audio","& 0 more"],"book_id":"9781250789068","cover_image_url":"https://img.bookfrontier.com/9781250789068.jpg?v=20260414T102527Z%3A2026-04-14T10%3A25%3A27Z","score":14.0569,"title":"Light From Uncommon Stars","url":"https://bookfrontier.com/books/9781250789068"},{"authors":["K. 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