{
  "type": "author",
  "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": "Kasia Keller",
  "slug": "kasia-keller",
  "url": "https://www.kolczanksiazek.pl/kasia-keller",
  "json": "https://www.kolczanksiazek.pl/kasia-keller.json",
  "markdown": "https://www.kolczanksiazek.pl/kasia-keller.md",
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  "languages_count": 1,
  "countries_count": 1,
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      "title": "Tomasz Niefart. Klątwa faraona",
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      "slug": "tomasz-niefart-klatwa-faraona",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/tomasz-niefart-klatwa-faraona",
      "first_published": "2026-10-29",
      "series": null
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    {
      "title": "Franek ma obowiązki. Jeżyk Franek",
      "subtitle": null,
      "slug": "franek-ma-obowiazki-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-ma-obowiazki-jezyk-franek",
      "first_published": "2026-01-01",
      "series": null
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    {
      "title": "Zagadka zaginionych klasówek. PAKA z domku na drzewie",
      "subtitle": null,
      "slug": "zagadka-zaginionych-klasowek-paka-z-domku-na-drzewie",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zagadka-zaginionych-klasowek-paka-z-domku-na-drzewie",
      "first_published": "2026-01-01",
      "series": null
    },
    {
      "title": "Wszystko na niby",
      "subtitle": null,
      "slug": "wszystko-na-niby",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/wszystko-na-niby",
      "first_published": "2026-01-01",
      "series": null
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    {
      "title": "Gacie na łopacie. Tomasz Niefart. Tom 2",
      "subtitle": null,
      "slug": "gacie-na-lopacie-tomasz-niefart-tom-2",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/gacie-na-lopacie-tomasz-niefart-tom-2",
      "first_published": "2026-01-01",
      "series": null
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    {
      "title": "Ratunku, tu nie ma wi-fi! To się czyta",
      "subtitle": null,
      "slug": "ratunku-tu-nie-ma-wi-fi-to-sie-czyta",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/ratunku-tu-nie-ma-wi-fi-to-sie-czyta",
      "first_published": "2026-01-01",
      "series": null
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    {
      "title": "Jeżyk Franek. Franek jest chory",
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      "url": "https://www.kolczanksiazek.pl/kasia-keller/jezyk-franek-franek-jest-chory",
      "first_published": "2026-01-01",
      "series": null
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    {
      "title": "Franek czeka na święta",
      "subtitle": null,
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      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-czeka-na-swieta",
      "first_published": "2025-11-12",
      "series": null
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    {
      "title": "Nasz tata Eugeniusz. Robobot",
      "subtitle": null,
      "slug": "nasz-tata-eugeniusz-robobot",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/nasz-tata-eugeniusz-robobot",
      "first_published": "2025-02-18",
      "series": null
    },
    {
      "title": "Fajna ferajna. Tom 3. Sabotaż",
      "subtitle": null,
      "slug": "fajna-ferajna-tom-3-sabotaz",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/fajna-ferajna-tom-3-sabotaz",
      "first_published": "2025-02-18",
      "series": null
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    {
      "title": "Fajna ferajna. Sabotaż. Tom 3",
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      "url": "https://www.kolczanksiazek.pl/kasia-keller/fajna-ferajna-sabotaz-tom-3",
      "first_published": "2025-02-13",
      "series": null
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    {
      "title": "Zosia odkrywa pojazdy. Jeżyk Franek",
      "subtitle": null,
      "slug": "zosia-odkrywa-pojazdy-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-pojazdy-jezyk-franek",
      "first_published": "2025-01-01",
      "series": null
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    {
      "title": "Zosia odkrywa kolory. Jeżyk Franek",
      "subtitle": null,
      "slug": "zosia-odkrywa-kolory-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-kolory-jezyk-franek",
      "first_published": "2025-01-01",
      "series": null
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    {
      "title": "Zosia odkrywa zawody",
      "subtitle": null,
      "slug": "zosia-odkrywa-zawody",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-zawody",
      "first_published": "2025-01-01",
      "series": null
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    {
      "title": "Jeżyk Franek. Dzień z babcią i dziadkiem",
      "subtitle": null,
      "slug": "jezyk-franek-dzien-z-babcia-i-dziadkiem",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/jezyk-franek-dzien-z-babcia-i-dziadkiem",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek na biwaku. Jeżyk Franek",
      "subtitle": null,
      "slug": "franek-na-biwaku-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-na-biwaku-jezyk-franek",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Pierwszy dzień w przedszkolu. Jeżyk Franek",
      "subtitle": null,
      "slug": "pierwszy-dzien-w-przedszkolu-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/pierwszy-dzien-w-przedszkolu-jezyk-franek",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek i przyjaciele. Awanturka",
      "subtitle": null,
      "slug": "franek-i-przyjaciele-awanturka",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-i-przyjaciele-awanturka",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "PAKA z domku na drzewie. Zagadka świątecznej gwiazdy",
      "subtitle": null,
      "slug": "paka-z-domku-na-drzewie-zagadka-swiatecznej-gwiazdy",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/paka-z-domku-na-drzewie-zagadka-swiatecznej-gwiazdy",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Wszystko nie tak",
      "subtitle": null,
      "slug": "wszystko-nie-tak",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/wszystko-nie-tak",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Wszystko od początku",
      "subtitle": null,
      "slug": "wszystko-od-poczatku",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/wszystko-od-poczatku",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Kupa szczęścia. Tomasz Niefart. Tom 8",
      "subtitle": null,
      "slug": "kupa-szczescia-tomasz-niefart-tom-8",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/kupa-szczescia-tomasz-niefart-tom-8",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Tomasz Niefart. Pechowych Świąt",
      "subtitle": null,
      "slug": "tomasz-niefart-pechowych-swiat",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/tomasz-niefart-pechowych-swiat",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Paka z domku na drzewie. Zagadka szkolnej szatni",
      "subtitle": null,
      "slug": "paka-z-domku-na-drzewie-zagadka-szkolnej-szatni",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/paka-z-domku-na-drzewie-zagadka-szkolnej-szatni",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "PAKA z domku na drzewie. Zagadka pod psem",
      "subtitle": null,
      "slug": "paka-z-domku-na-drzewie-zagadka-pod-psem",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/paka-z-domku-na-drzewie-zagadka-pod-psem",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek i przyjaciele. Okulary",
      "subtitle": null,
      "slug": "franek-i-przyjaciele-okulary",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-i-przyjaciele-okulary",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek i przyjaciele. Przegrany mecz",
      "subtitle": null,
      "slug": "franek-i-przyjaciele-przegrany-mecz",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-i-przyjaciele-przegrany-mecz",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek i przyjaciele. Nowa Pani",
      "subtitle": null,
      "slug": "franek-i-przyjaciele-nowa-pani",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-i-przyjaciele-nowa-pani",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Palący problem. Ale(k) Łopot. Tom 2",
      "subtitle": null,
      "slug": "palacy-problem-alek-lopot-tom-2",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/palacy-problem-alek-lopot-tom-2",
      "first_published": "2025-01-01",
      "series": null
    },
    {
      "title": "Franek i trudna przyjaźń",
      "subtitle": null,
      "slug": "franek-i-trudna-przyjazn",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-i-trudna-przyjazn",
      "first_published": "2024-09-11",
      "series": null
    },
    {
      "title": "Franek uczy się dzielić",
      "subtitle": null,
      "slug": "franek-uczy-sie-dzielic",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-uczy-sie-dzielic",
      "first_published": "2024-09-11",
      "series": null
    },
    {
      "title": "Franek się złości. Jeżyk Franek",
      "subtitle": null,
      "slug": "franek-sie-zlosci-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-sie-zlosci-jezyk-franek",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Ofiara losu. Tomasz Niefart",
      "subtitle": null,
      "slug": "ofiara-losu-tomasz-niefart",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/ofiara-losu-tomasz-niefart",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Paka z domku na drzewie. Zagadka hotelu",
      "subtitle": null,
      "slug": "paka-z-domku-na-drzewie-zagadka-hotelu",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/paka-z-domku-na-drzewie-zagadka-hotelu",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Kraina pełna emocjii. Kangur Edek i szewska pasja",
      "subtitle": null,
      "slug": "kraina-pelna-emocjii-kangur-edek-i-szewska-pasja",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/kraina-pelna-emocjii-kangur-edek-i-szewska-pasja",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Kraina pełna emocjii. Miś Stefek i jeżące się trudności",
      "subtitle": null,
      "slug": "kraina-pelna-emocjii-mis-stefek-i-jezace-sie-trudnosci",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/kraina-pelna-emocjii-mis-stefek-i-jezace-sie-trudnosci",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Franek ma kłopot",
      "subtitle": null,
      "slug": "franek-ma-klopot",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-ma-klopot",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Ale(k) Łopot (tom 1) Świetlana przyszłość",
      "subtitle": null,
      "slug": "alek-lopot-tom-1-swietlana-przyszlosc",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/alek-lopot-tom-1-swietlana-przyszlosc",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Zosia odkrywa emocje",
      "subtitle": null,
      "slug": "zosia-odkrywa-emocje",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-emocje",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Zosia odkrywa jedzenie",
      "subtitle": null,
      "slug": "zosia-odkrywa-jedzenie",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-jedzenie",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Zosia odkrywa zwierzęta",
      "subtitle": null,
      "slug": "zosia-odkrywa-zwierzeta",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/zosia-odkrywa-zwierzeta",
      "first_published": "2024-01-01",
      "series": null
    },
    {
      "title": "Antykwariat dobrych życzeń",
      "subtitle": null,
      "slug": "antykwariat-dobrych-zyczen",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/antykwariat-dobrych-zyczen",
      "first_published": "2023-09-15",
      "series": null
    },
    {
      "title": "Julka i Janek. Co lubi miłość",
      "subtitle": null,
      "slug": "julka-i-janek-co-lubi-milosc",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/julka-i-janek-co-lubi-milosc",
      "first_published": "2023-04-26",
      "series": null
    },
    {
      "title": "Julka i Janek. Czego nie lubi nieśmiałość",
      "subtitle": null,
      "slug": "julka-i-janek-czego-nie-lubi-niesmialosc",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/julka-i-janek-czego-nie-lubi-niesmialosc",
      "first_published": "2023-04-26",
      "series": null
    },
    {
      "title": "Franek szuka odwagi",
      "subtitle": null,
      "slug": "franek-szuka-odwagi",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-szuka-odwagi",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Franek sprząta zabawki",
      "subtitle": null,
      "slug": "franek-sprzata-zabawki",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-sprzata-zabawki",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Franek jest niecierpliwy",
      "subtitle": null,
      "slug": "franek-jest-niecierpliwy",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-jest-niecierpliwy",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Szczyt żenady. Tomasz Niefart. Tom 6",
      "subtitle": null,
      "slug": "szczyt-zenady-tomasz-niefart-tom-6",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/szczyt-zenady-tomasz-niefart-tom-6",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Skazany na porażkę. Tomasz Niefart. Tom 1",
      "subtitle": null,
      "slug": "skazany-na-porazke-tomasz-niefart-tom-1",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/skazany-na-porazke-tomasz-niefart-tom-1",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Pechowo się składa. Tomasz Niefart. Tom 5",
      "subtitle": null,
      "slug": "pechowo-sie-sklada-tomasz-niefart-tom-5",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/pechowo-sie-sklada-tomasz-niefart-tom-5",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Franek mówi \"dzień dobry\". Jeżyk Franek",
      "subtitle": null,
      "slug": "franek-mowi-dzien-dobry-jezyk-franek",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/franek-mowi-dzien-dobry-jezyk-franek",
      "first_published": "2023-01-01",
      "series": null
    },
    {
      "title": "Julka i Janek. Czego nie lubi burza",
      "subtitle": null,
      "slug": "julka-i-janek-czego-nie-lubi-burza",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/julka-i-janek-czego-nie-lubi-burza",
      "first_published": "2022-06-15",
      "series": null
    },
    {
      "title": "Julka i Janek. Czego nie lubi złość",
      "subtitle": null,
      "slug": "julka-i-janek-czego-nie-lubi-zlosc",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/julka-i-janek-czego-nie-lubi-zlosc",
      "first_published": "2022-06-15",
      "series": null
    },
    {
      "title": "Tomasz Niefart. Strach się bać. Tom 3",
      "subtitle": null,
      "slug": "tomasz-niefart-strach-sie-bac-tom-3",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/tomasz-niefart-strach-sie-bac-tom-3",
      "first_published": "2022-05-18",
      "series": null
    },
    {
      "title": "Tomasz Niefart. Strach się bać",
      "subtitle": null,
      "slug": "tomasz-niefart-strach-sie-bac",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/tomasz-niefart-strach-sie-bac",
      "first_published": "2022-04-27",
      "series": null
    },
    {
      "title": "Malwinka i Lusia. Lot po marzenia",
      "subtitle": null,
      "slug": "malwinka-i-lusia-lot-po-marzenia",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/malwinka-i-lusia-lot-po-marzenia",
      "first_published": "2022-03-23",
      "series": null
    },
    {
      "title": "Średnio na jeża. Tomasz Niefart. Tom 4",
      "subtitle": null,
      "slug": "srednio-na-jeza-tomasz-niefart-tom-4",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/srednio-na-jeza-tomasz-niefart-tom-4",
      "first_published": "2022-01-01",
      "series": null
    },
    {
      "title": "Julka i Janek. Czego nie lubi potwór",
      "subtitle": null,
      "slug": "julka-i-janek-czego-nie-lubi-potwor",
      "url": "https://www.kolczanksiazek.pl/kasia-keller/julka-i-janek-czego-nie-lubi-potwor",
      "first_published": "2022-01-01",
      "series": null
    },
    {
      "title": "Julka i Janek. Czego nie lubi strupek",
      "subtitle": null,
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