{
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  "formats": "Every page has two versions with the same data: JSON (the page address + .json) and markdown (the page address + .md). Append .json or .md to any `url` in this document.",
  "title": "The Secret of Secrets",
  "subtitle": null,
  "slug": "the-secret-of-secrets",
  "url": "https://www.bookquiver.com/dan-brown/pl/the-secret-of-secrets",
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  "cover": "https://quivercdn.com/covers/bantam/dan-brown/the-secret-of-secrets_978-17-8763-455-8.webp?v=2026-08-17%2016%3A28%3A31",
  "description": "Robert Langdon is back in the long-awaited new race-against-time thriller from the global bestselling author of The Da Vinci Code and Angels and Demons. Accompanying celebrated academic, Katherine Solomon, to a lecture she`s been invited to give in Prague, Robert Langdon`s world spirals out of...",
  "editions": [
    {
      "title": "The Secret of Secrets",
      "subtitle": null,
      "url": "https://www.bookquiver.com/dan-brown/pl/the-secret-of-secrets/9781787634558",
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      "medium": "paper",
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      "isbn": "978-17-8763-455-8",
      "pages": 688,
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      "title": "The Secret of Secrets",
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    {
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