{"schema_version":"bf_book_companion_v1","release_id":"20260402T191500Z-bisacv2site-fullset","book":{"amazon_purchase_url":"https://www.amazon.com/dp/1515421198?tag=bookfrontier-20","asin":"1515421198","authors":["Keith Laumer"],"book_id":"9781682991886","canonical_url":"https://bookfrontier.com/books/9781682991886","cover_image_url":"https://img.bookfrontier.com/9781682991886.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","description":"Granthan's mission was the most vital of the war. It would mean instant victory—but for whom? Earth didn't trust his information. They were sure that he had been brain washed by the enemy. He had to convince them that he could be trusted before they killed him. But could he?","forthcoming":false,"isbn13":"9781682991886","publication_date":"20160421","publisher":"Start Publishing LLC","slug":"end-as-a-hero","subtitle":"","title":"End As a Hero"},"discovery":{"categories":{"all":[{"bisac_code":"FIC028020","confidence_band":"medium","label":"Hard Sci-Fi","score":0.8075,"source":"bisac_hint_model"},{"bisac_code":"FIC028030","confidence_band":"medium","label":"Space Opera","score":0.7996,"source":"bisac_hint_model"},{"bisac_code":"FIC028010","confidence_band":"medium","label":"Sci-Fi Adventure","score":0.7951,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"FIC028020","confidence_band":"medium","label":"Hard Sci-Fi","score":0.8075,"source":"bisac_hint_model"},{"bisac_code":"FIC028030","confidence_band":"medium","label":"Space Opera","score":0.7996,"source":"bisac_hint_model"},{"bisac_code":"FIC028010","confidence_band":"medium","label":"Sci-Fi Adventure","score":0.7951,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"FIC028010","confidence_band":"high","label":"Sci-Fi Adventure","score":1,"source":"onix_publisher_code"},{"bisac_code":"FIC028020","confidence_band":"high","label":"Hard Sci-Fi","score":1,"source":"onix_publisher_code"},{"bisac_code":"FIC028030","confidence_band":"high","label":"Space Opera","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Hard Sci-Fi","score":0.8075,"slug":"hard-sci-fi"},{"label":"Space Opera","score":0.7996,"slug":"space-opera"},{"label":"Sci-Fi Adventure","score":0.7951,"slug":"sci-fi-adventure"}],"reader_fit":["Good for readers who enjoy Hard Sci-Fi","Good for readers interested in space","Good for fans of Science Fiction"],"related_lists":[],"series":null,"similar_books":[{"authors":["Keith Laumer"],"book_id":"9781625587329","cover_image_url":"https://img.bookfrontier.com/9781625587329.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":19.0708,"title":"Greylorn","url":"https://bookfrontier.com/books/9781625587329"},{"authors":["Keith Laumer","Virgil Finlay","John Pederson","& 0 more"],"book_id":"9781649740663","cover_image_url":"https://img.bookfrontier.com/9781649740663.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":19.0027,"title":"The Long Remembered Thunder","url":"https://bookfrontier.com/books/9781649740663"},{"authors":["Keith Laumer"],"book_id":"9798880905188","cover_image_url":"https://img.bookfrontier.com/9798880905188.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":18.9866,"title":"Greylorn","url":"https://bookfrontier.com/books/9798880905188"},{"authors":["Keith Laumer"],"book_id":"9781649741196","cover_image_url":"https://img.bookfrontier.com/9781649741196.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":18.9705,"title":"A Trace of Memory","url":"https://bookfrontier.com/books/9781649741196"},{"authors":["Keith Laumer"],"book_id":"9798880910670","cover_image_url":"https://img.bookfrontier.com/9798880910670.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":15.7431,"title":"Retief: the Yillian Way","url":"https://bookfrontier.com/books/9798880910670"},{"authors":["Keith Laumer"],"book_id":"9781649740465","cover_image_url":"https://img.bookfrontier.com/9781649740465.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":15.6997,"title":"Retief: the Desert and the Stars","url":"https://bookfrontier.com/books/9781649740465"},{"authors":["Keith Laumer"],"book_id":"9781649740458","cover_image_url":"https://img.bookfrontier.com/9781649740458.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":15.661,"title":"Retief: Saline Solution","url":"https://bookfrontier.com/books/9781649740458"},{"authors":["Clifford D. Simak"],"book_id":"9781681465135","cover_image_url":"https://img.bookfrontier.com/9781681465135.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":14.5174,"title":"Empire","url":"https://bookfrontier.com/books/9781681465135"}],"topics":[{"evidence_refs":["keyword:high stakes space mission"],"label":"High","score":0.0658,"slug":"high"},{"evidence_refs":["keyword:space trust betrayal"],"label":"Space","score":0.0595,"slug":"space"}],"what_you_get":["Themes: High, Space.","Reading lane: Hard Sci Fi and Space Opera.","Publisher: Start Publishing LLC."]},"llm_signals":null,"source_presence":{"amazon":true,"book_detail":true,"goodreads":true,"llm_signals":false,"similarity_seed":true},"stats":{"amazon_ratings_count":0,"goodreads_ratings_count":102,"goodreads_reviews_count":6,"quality_score":0.8555}}