{
  "type": "book",
  "site": {
    "name": "Kołczan Książek",
    "language": "pl-PL",
    "url": "https://www.kolczanksiazek.pl"
  },
  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "The Dark Secret",
  "subtitle": null,
  "slug": "the-dark-secret",
  "url": "https://www.kolczanksiazek.pl/tui-sutherland/en/the-dark-secret",
  "json": "https://www.kolczanksiazek.pl/tui-sutherland/en/the-dark-secret.json",
  "markdown": "https://www.kolczanksiazek.pl/tui-sutherland/en/the-dark-secret.md",
  "authors": [
    {
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  "original_language": null,
  "first_published": "2025-12-18",
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      "heading": "Proza literacka"
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    {
      "code": "Y",
      "heading": "Publikacje dla dzieci i młodzieży, edukacja"
    },
    {
      "code": "YF",
      "heading": "Literatura dla dzieci i młodzieży"
    },
    {
      "code": "YFG",
      "heading": "Fantastyka naukowa dla dzieci i młodzieży"
    },
    {
      "code": "YFH",
      "heading": "Fantasy dla dzieci i młodzieży"
    }
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  "series": [
    {
      "name": "Wings of Fire",
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      "volume": 4,
      "url": "https://www.kolczanksiazek.pl/tui-sutherland/seria/wings-of-fire"
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  "cover": "https://quivercdn.com/covers/scholastic/erin-hunter/wings-of-fire-the-dark-secret-special-edition_979-82-2500-831-4-f17418af.webp?v=2026-10-22%2003%3A37%3A24",
  "description": "This special edition of the fourth book in the #1 New York Times bestselling Wings of Fire series includes exclusive never-before-seen sketches and a Q&A with Tui T. Sutherland! In the shadows, trouble is brewing. . . The mysterious NightWings keep everything hidden, from their home and their queen to their allegiance in the war. Now they''ve kidnapped their own dragonet of destiny, and Starflight is finally meeting the rest of his tribe -- whether he wants to or not. The NightWings have also kidnapped several innocent RainWings, now trapped in the dark, barren, miserable place that is the NightWing kingdom. Starflight wants to help the RainWings, but he''s busy saving his own scales and trying to find a way back to his friends. The fate of two kingdoms rests in his talons, and with no one to save him, Starflight will have to find a way to be brave . . . before it''s too late.",
  "editions": [
    {
      "title": "The Dark Secret",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/tui-sutherland/en/the-dark-secret/9798225008314",
      "publisher": "Scholastic",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
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      "narrators": [],
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      "cover_artists": [],
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  "other_languages": [
    {
      "title": "El oscuro secreto",
      "language": "es_ES",
      "url": "https://www.kolczanksiazek.pl/tui-t-sutherland/es/el-oscuro-secreto"
    },
    {
      "title": "Mroczny sekret",
      "language": "pl_PL",
      "url": "https://www.kolczanksiazek.pl/tui-t-sutherland/mroczny-sekret"
    },
    {
      "title": "O Segredo Obscuro",
      "language": "pt_PT",
      "url": "https://www.kolczanksiazek.pl/tui-t-sutherland/pt/o-segredo-obscuro"
    },
    {
      "title": "Темний секрет",
      "language": "uk_UA",
      "url": "https://www.kolczanksiazek.pl/tui-sazerlend/uk/temnyi-sekret"
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  "characters": [],
  "chapters": []
}