{"schema_version":"bf_book_companion_v1","release_id":"20260416T232012Z","book":{"amazon_purchase_url":"https://www.amazon.com/dp/0316570419?tag=bookfrontier-20","asin":"0316570419","authors":["Tigest Girma"],"book_id":"9780316570411","canonical_url":"https://bookfrontier.com/books/eternal-ruin-0316570419","cover_image_url":"https://img.bookfrontier.com/9780316570411.jpg?v=20260416T232012Z%3A2026-04-17T10%3A17%3A29Z","description":"The instant #1 New York Times Bestseller The instant Indie Bestseller The instant USA Today Bestseller​ This gorgeous DELUXE LIMITED EDITION is available while supplies last and features: - Stenciled sprayed edges - Printed case - Gorgeous endpaper art - Deluxe effects on the jacket The breathtaking sequel to the #1 New York Times bestseller, Immortal Dark! Like all ruinous things, he came from the abyss. Kidan Adane has finally embraced her darkness. She’s killed without remorse, lied, and broken Uxlay University’s most sacred law by inviting elusive rogue vampires, the Nefrasi, into Uxlay. Trapped with a violently unstable vampire, and reeling from her sister’s return, Kidan wields her anger like a weapon. She vows to master her house and protect the sacred artifact hidden inside, even if it means forging an alliance with the depraved leader of the Nefrasi, Samson Sagad--and betraying Susenyos. A dangerous new philosophical text seems to hold the answers and promises the very thing Kidan has lost: control. Even as the dark pages consume her, Kidan knows no soul at Uxlay is trustworthy—least of all Susenyos. For Kidan and Susenyos, the lines of loathing and attraction may blur, but the quest for power rules them both. And neither is willing to surrender. As devastating secrets resurface from the past, Kidan and her sister, June, must finally confront each other and take their rightful places in the looming war.","forthcoming":false,"isbn13":"9780316570411","publication_date":"20251104","publisher":"Little, Brown Books for Young Readers","slug":"eternal-ruin","subtitle":"","title":"Eternal Ruin"},"discovery":{"categories":{"all":[{"bisac_code":"YAF019020","confidence_band":"medium","label":"Dark YA Fantasy","score":0.8514,"source":"bisac_hint_model"},{"bisac_code":"YAF019060","confidence_band":"medium","label":"YA Fantasy Romance","score":0.8373,"source":"bisac_hint_model"},{"bisac_code":"YAF052050","confidence_band":"medium","label":"Paranormal YA Romance","score":0.8357,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"YAF019020","confidence_band":"medium","label":"Dark YA Fantasy","score":0.8514,"source":"bisac_hint_model"},{"bisac_code":"YAF019060","confidence_band":"medium","label":"YA Fantasy Romance","score":0.8373,"source":"bisac_hint_model"},{"bisac_code":"YAF052050","confidence_band":"medium","label":"Paranormal YA Romance","score":0.8357,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"YAF019010","confidence_band":"high","label":"Contemporary YA Fantasy","score":1,"source":"onix_publisher_code"},{"bisac_code":"YAF019020","confidence_band":"high","label":"Dark YA Fantasy","score":1,"source":"onix_publisher_code"},{"bisac_code":"YAF019060","confidence_band":"high","label":"YA Fantasy Romance","score":1,"source":"onix_publisher_code"},{"bisac_code":"YAF065000","confidence_band":"high","label":"Vampires","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Dark YA Fantasy","score":0.8514,"slug":"dark-ya-fantasy"},{"label":"YA Fantasy Romance","score":0.8373,"slug":"ya-fantasy-romance"},{"label":"Paranormal YA Romance","score":0.8357,"slug":"paranormal-ya-romance"}],"reader_fit":["Good for readers who enjoy Dark YA Fantasy","Good for readers interested in friendship","Good for fans of Fantasy"],"related_lists":[{"intro":"Campus-set fiction where ambition, secrecy, and atmosphere do the heavy lifting.","slug":"how-its-told-dark-academia","title":"Dark Academia Books","url":"https://bookfrontier.com/lists/how-its-told-dark-academia"}],"series":null,"similar_books":[{"authors":["Tigest Girma"],"book_id":"9780316570398","cover_image_url":"https://img.bookfrontier.com/9780316570398.jpg?v=20260416T232012Z%3A2026-04-17T10%3A17%3A29Z","score":20.9782,"title":"Immortal Dark","url":"https://bookfrontier.com/books/9780316570398"},{"authors":["I. 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