{
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  "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 Iron Trial",
  "subtitle": null,
  "slug": "the-iron-trial",
  "url": "https://www.kolczanksiazek.pl/holly-black/en/the-iron-trial",
  "json": "https://www.kolczanksiazek.pl/holly-black/en/the-iron-trial.json",
  "markdown": "https://www.kolczanksiazek.pl/holly-black/en/the-iron-trial.md",
  "authors": [
    {
      "name": "Holly Black",
      "slug": "holly-black",
      "url": "https://www.kolczanksiazek.pl/holly-black"
    },
    {
      "name": "Cassandra Clare",
      "slug": "cassandra-clare",
      "url": "https://www.kolczanksiazek.pl/cassandra-clare"
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    {
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  "language": "en_US",
  "original_title": "Magisterium: The Iron Trial",
  "original_language": "en",
  "first_published": "2014-09-09",
  "genres": [
    {
      "code": "DNX",
      "heading": "Opowieści oparte na faktach"
    },
    {
      "code": "FBC",
      "heading": "Klasyka literatury pięknej"
    },
    {
      "code": "FJ",
      "heading": "Literatura przygodowa, literatura akcji"
    },
    {
      "code": "FM",
      "heading": "Fantasy"
    },
    {
      "code": "FNF",
      "heading": "Bajki i opowieści ludowe/ Opowiadanie bajek"
    }
  ],
  "series": [
    {
      "name": "Magisterium",
      "slug": "magisterium",
      "volume": 1,
      "url": "https://www.kolczanksiazek.pl/holly-black/seria/magisterium"
    }
  ],
  "cover": "https://quivercdn.com/covers/listening-library/holly-black/the-iron-trial_978-08-0412-261-0.jpg?v=2026-06-13%2008%3A00%3A55",
  "description": "Most kids would do anything to pass the Iron Trial. Not Callum Hunt. He wants to fail. All his life, Call has been warned by his father to stay away from magic. If he succeeds at the Iron Trial and...",
  "editions": [
    {
      "title": "The Iron Trial",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/holly-black/en/the-iron-trial/9780804122610",
      "publisher": "listening_library",
      "translators": [],
      "medium": "audio",
      "duration_seconds": null,
      "narrators": [],
      "isbn": "978-08-0412-261-0",
      "pages": null,
      "published": "2014-09-09",
      "language": "en_US",
      "cover": "https://quivercdn.com/covers/listening-library/holly-black/the-iron-trial_978-08-0412-261-0.jpg?v=2026-06-13%2008%3A00%3A55"
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  ],
  "other_languages": [
    {
      "title": "Magisterium I: Próba Żelaza",
      "language": "pl_PL",
      "url": "https://www.kolczanksiazek.pl/cassandra-clare/magisterium-i-proba-zelaza"
    },
    {
      "title": "Magisterium: O desafio de ferro (Vol. 1)",
      "language": "pt_BR",
      "url": "https://www.kolczanksiazek.pl/cassandra-clare/pt/magisterium-o-desafio-de-ferro-vol-1"
    }
  ],
  "characters": [],
  "chapters": []
}