The Medieval Book With a Full-Page Portrait of Satan

The Codex Gigas weighs 75 kg and took around 160 animal skins to make. Legend says a doomed monk wrote it in a single night with the Devil's help — and its handwriting is so uniform it may really be one person's life's work.

by rbtholeOct 20, 2026
  1. The Bible Written by the Devil in One Night

    The legend that gave the book its nickname: a monk condemned to be walled up alive bargains with Satan to finish an impossible manuscript before dawn.

  2. Did a Monk Really Sell His Soul?

    Separating the pact-with-the-Devil myth from what scholars can actually trace about the scribe and the monastery of Podlažice.

  3. Codex Gigas: The Full Record

    The largest surviving medieval manuscript: around 310 leaves, a complete Latin Bible, Josephus, Isidore of Seville, medical texts, and exorcism spells — all in one volume.

  4. The National Library of Sweden's Own Dossier

    The institution that has guarded the Codex since 1648 lays out its dimensions, its texts, and the single remarkable hand that wrote all 600-plus pages.

  5. How the Devil's Bible Became War Loot

    From a Bohemian monastery to Rudolf II's cabinet of curiosities to a Swedish army's saddlebags in 1648 — the strange journey that stranded it in Stockholm.

  6. The Terrifying True Story of the Codex Gigas

    Why the manuscript still unsettles people: the missing pages, the uniform script no committee could produce, and the lone full-page Devil staring out of the vellum.

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