{
  "type": "series",
  "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.",
  "name": "Historia Śródziemia",
  "slug": "historia-srodziemia",
  "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/seria/historia-srodziemia",
  "json": "https://www.kolczanksiazek.pl/j-r-r-tolkien/seria/historia-srodziemia.json",
  "markdown": "https://www.kolczanksiazek.pl/j-r-r-tolkien/seria/historia-srodziemia.md",
  "author": {
    "name": "J. R. R. Tolkien",
    "slug": "j-r-r-tolkien",
    "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien"
  },
  "books_in_catalog": 9,
  "volumes_total": 8,
  "published": "1996–2026",
  "missing_volumes": [],
  "books": [
    {
      "volume": 1,
      "title": "Księga zaginionych opowieści, część 1",
      "subtitle": null,
      "slug": "ksiega-zaginionych-opowiesci-czesc-1",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/ksiega-zaginionych-opowiesci-czesc-1",
      "publisher": "zysk",
      "published": "2026-11-17",
      "isbn": "978-83-8335-986-1"
    },
    {
      "volume": 2,
      "title": "Księga zaginionych opowieści, część 2",
      "subtitle": null,
      "slug": "ksiega-zaginionych-opowiesci-czesc-2",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/ksiega-zaginionych-opowiesci-czesc-2",
      "publisher": "zysk",
      "published": "2025-10-21",
      "isbn": "978-83-8335-741-6"
    },
    {
      "volume": 2,
      "title": "Ostatnie legendy Śródziemia",
      "subtitle": null,
      "slug": "ostatnie-legendy-srodziemia",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/ostatnie-legendy-srodziemia",
      "publisher": "Atlantis",
      "published": "1996-01-01",
      "isbn": "8-386-28406-4"
    },
    {
      "volume": 3,
      "title": "Ballady Beleriandu",
      "subtitle": null,
      "slug": "ballady-beleriandu",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/ballady-beleriandu",
      "publisher": "zysk",
      "published": "2025-04-15",
      "isbn": "978-83-8335-582-5"
    },
    {
      "volume": 4,
      "title": "Kształtowanie Śródziemia",
      "subtitle": null,
      "slug": "ksztaltowanie-srodziemia",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/ksztaltowanie-srodziemia",
      "publisher": "zysk",
      "published": "2024-05-21",
      "isbn": "978-83-8335-202-2"
    },
    {
      "volume": 5,
      "title": "Utracona droga i inne pisma",
      "subtitle": null,
      "slug": "utracona-droga-i-inne-pisma",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/utracona-droga-i-inne-pisma",
      "publisher": "zysk",
      "published": "2024-10-29",
      "isbn": "978-83-8335-367-8"
    },
    {
      "volume": 6,
      "title": "Powrót Cienia",
      "subtitle": null,
      "slug": "powrot-cienia",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/powrot-cienia",
      "publisher": "zysk",
      "published": "2025-06-24",
      "isbn": "978-83-8335-420-0"
    },
    {
      "volume": 7,
      "title": "Zdrada Isengardu",
      "subtitle": null,
      "slug": "zdrada-isengardu",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/zdrada-isengardu",
      "publisher": "zysk",
      "published": "2026-01-20",
      "isbn": "978-83-8335-723-2"
    },
    {
      "volume": 8,
      "title": "Wojna o Pierścień",
      "subtitle": null,
      "slug": "wojna-o-pierscien",
      "url": "https://www.kolczanksiazek.pl/j-r-r-tolkien/wojna-o-pierscien",
      "publisher": "zysk",
      "published": "2026-06-30",
      "isbn": "978-83-8335-866-6"
    }
  ]
}