{
  "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": "Echo",
  "slug": "echo",
  "url": "https://www.kolczanksiazek.pl/marcel-moss/seria/echo",
  "json": "https://www.kolczanksiazek.pl/marcel-moss/seria/echo.json",
  "markdown": "https://www.kolczanksiazek.pl/marcel-moss/seria/echo.md",
  "author": {
    "name": "Marcel Moss",
    "slug": "marcel-moss",
    "url": "https://www.kolczanksiazek.pl/marcel-moss"
  },
  "books_in_catalog": 7,
  "volumes_total": 7,
  "published": "2023–2026",
  "missing_volumes": [],
  "books": [
    {
      "volume": 1,
      "title": "Utraceni",
      "subtitle": null,
      "slug": "utraceni",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/utraceni",
      "publisher": "Mroczna Strona",
      "published": "2025-01-01",
      "isbn": "978-83-8402-186-6"
    },
    {
      "volume": 2,
      "title": "Zaginieni",
      "subtitle": null,
      "slug": "zaginieni",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/zaginieni",
      "publisher": "Filia",
      "published": "2025-01-01",
      "isbn": "978-83-8402-906-0"
    },
    {
      "volume": 3,
      "title": "Niewinni",
      "subtitle": null,
      "slug": "niewinni",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/niewinni",
      "publisher": "Mroczna Strona",
      "published": "2023-01-20",
      "isbn": "978-83-8280-452-2"
    },
    {
      "volume": 4,
      "title": "Porwani",
      "subtitle": null,
      "slug": "porwani",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/porwani",
      "publisher": "Filia",
      "published": "2025-01-01",
      "isbn": "978-83-8402-742-4"
    },
    {
      "volume": 5,
      "title": "Przeklęci",
      "subtitle": null,
      "slug": "przekleci",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/przekleci",
      "publisher": "Filia",
      "published": "2025-09-16",
      "isbn": "978-83-8402-740-0"
    },
    {
      "volume": 6,
      "title": "Zapomniani",
      "subtitle": null,
      "slug": "zapomniani",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/zapomniani",
      "publisher": "Filia",
      "published": "2025-01-01",
      "isbn": "978-83-8402-706-6"
    },
    {
      "volume": 7,
      "title": "Ścigani",
      "subtitle": null,
      "slug": "scigani",
      "url": "https://www.kolczanksiazek.pl/marcel-moss/scigani",
      "publisher": "Mroczna Strona",
      "published": "2026-01-01",
      "isbn": "978-83-8441-451-4"
    }
  ]
}