“We are creating something that will prevent the end of the world in 1968, when the great cyclone will devastate a large part of our planet.”

— Miguel and Manoel to their neighbor, Fernando José.

Description:

In one of Brazil’s strangest unsolved mysteries, two electronics technicians travel to Niterói in 1966, buy matching raincoats, hike up a remote hill with cash, water, towels, and a handwritten set of bizarre instructions, then turn up dead days later lying side by side on palm leaves, wearing homemade lead eye masks and showing no clear cause of death. What follows is a case that spirals far beyond a simple true-crime puzzle, with every answer leading to a bigger question: were these men victims of a bizarre accident, participants in something occult, or did they believe they were about to witness something not of this world?

Reference Links:

AL328: Bibliography

Primary Archival Documents & Deep-Dive Repositories

O Globo (1966): Original contemporary journalistic coverage of the Vintém Hill discovery, the police investigation, and the forensic timeline. Available via the https://memoria.oglobo.globo.com/jornalismo/esportes/o-globo-na-copa-9662458
Revista Manchete (1966): Brazilian weekly magazine featuring extensive photojournalism and coverage of the Lead Masks mystery. https://www.abebooks.com/book-search/title/manchete/
Correio da Manhã (1969): Archival police files and reporting detailing the subsequent investigations, including the interrogation and confession of Hamilton Dezani. https://en.wikipedia.org/wiki/Correio_da_Manh%C3%A3_(Brazil)
The "Migueleto" Blog Archive: A comprehensive digital repository of translated Brazilian case files, police inventories, and localized theories regarding the deaths of Manoel Pereira da Cruz and Miguel José Viana. tinyurl.com/leadmasks

Foundational Texts, Ufology, & Esoterica

Kardec, Allan. The Spirits' Book (Le Livre des Esprits). (1857). The foundational text of Kardecist Spiritism. (Specifically referenced: Book 1, Chapter 3: "Plurality of Worlds," Questions 55 & 57). https://bookshop.org/beta-search?keywords=the+spirits+book
Maes, Hercílio (Channeled via Ramatís). A Vida no Planeta Marte e os Discos Voadores (Life on Planet Mars and Flying Saucers). (1955). The specific Ufo-Spiritism text owned and heavily annotated by the victims. https://bookshop.org/p/books/la-vida-en-el-planeta-marte-y-los-discos-voladores/5feb392fa2902d88?ean=9798666284841&next=t
Vallée, Jacques. Confrontations: A Scientist's Search for Alien Contact. (1990). Essential reading for the "Trickster" and Ultraterrestrial theories, featuring Vallée's own on-the-ground investigation into the Lead Masks Case. https://bookshop.org/p/books/confrontations-a-scientist-s-search-for-alien-contact-jacques-vallee/ddc948e680d9729a?ean=9781933665290&next=t.
Keel, John A. The Mothman Prophecies. (1975). Foundational text for examining the deceptive, indifferent, and often fatal nature of non-human intelligence and the "cosmic trickster" phenomenon. Reference via Goodreads.

Academic Research, Demographics, & History

Brazilian Institute of Geography and Statistics (IBGE). (2010). National Demographic Census. Official data regarding the population metrics of self-declared Spiritists in modern Brazil. View the IBGE 2010 Census Data.
Lucchetti, Giancarlo, et al. Complementary Spiritist Therapy: Systematic Review of Scientific Evidence. (2011). Peer-reviewed study detailing the modern integration of Spiritist centers, hospitals, and psychiatric care in Brazil. Read the full study via the National Library of Medicine (PMC3108156).
Bellos, Alex. Chico Xavier Obituary. The Guardian (July 11, 2002). Historical overview of Brazil's most famous medium, his 50-million-copy philanthropic publishing empire, and his 1981/1982 Nobel Peace Prize nominations. Read the obituary via The Guardian.
Skidmore, Thomas E. The Politics of Military Rule in Brazil, 1964-1985. (1988). Oxford University Press. Historical context regarding the 1964 military coup, the AI-5, state censorship, and the crackdown on subversives.https://bookshop.org/p/books/the-mothman-prophecies-a-true-story-john-a-keel/37dad0e46972f587?ean=9780765334985&next=t

Film & Media

Hatem, Richard. The Mothman Prophecies (Screenplay). (2002). Directed by Mark Pellington. Referenced for its portrayal of Indrid Cold, the "Indifferent Entity," and the fatal cosmic miscommunication experienced by Gordon Smallwood.View via IMDb.

Books

Spencer, John. UFOs: The Definitive Casebook. London: Hamlyn Publishing Group, 1991.

https://www.ainsworthbooks.com/product/18358/UFOS-the-Definitive-Casebook

Vallée, Jacques. Confrontations: A Scientist's Search for Alien Contact. New York: Ballantine Books, 1990. https://www.amazon.com/Confrontations-Scientists-Search-Alien-Contact/dp/1933665297?tag=ustxtaddt-20

PDF book in Portuguese: Maes, Hercílio. A Vida no Planeta Marte e os Discos Voadores. 9th ed. Limeira, Brazil: Editora do Conhecimento, n.d.

https://files01.core.ac.uk/download/296854739.pdf

Articles & Blogs

Covo, C. "O Caso Mascaras de Chumbo Revisado." UFO. Editora Evolucao, January 25, 2012. http://www.ufo.com.br/artigos/o-caso-mascaras-de-chumbo-revisado/.

Dunning, Brian. "Solving the Lead Masks of Vintem Hill." Skeptoid Podcast, January 21, 2014. https://skeptoid.com/episodes/398.

Ghost Theory. "The Mysterious 'Lead Masks Case'." Ghost Theory, September 18, 2011. https://www.ghosttheory.com/2011/09/18/the-mysterious-lead-masks-case

Korbus, J. "What Happened on Vintém Hill?: The Mystery of the Lead Masks." Who Forted?, April 10, 2011. https://web.archive.org/web/20160304032934/http://weekinweird.com/2011/04/10/what-happened-on-vintem-hill-the-mystery-of-the-lead-masks/

PMIG96. "The Lead Masks Case." pmig96 (blog), May 10, 2021. https://pmig96.wordpress.com/lead-masks-case-sources-part-1/.

Multimedia (Video, Audio & Television)

Qxir. "The Unsolved Mystery of the Lead Masks Case | Tales From the Bottle." YouTube video. https://www.youtube.com/watch?v=xHBgzOTP1RY

Rede Globo. "Linha Direta - 1990 - Máscaras de Chumbo." YouTube video, 39:40. Aired March 29, 1990. Uploaded by Arquivo Linha Direta, May 5, 2020. https://www.youtube.com/watch?v=NoPHYQuAlnw.

Stuff They Don't Want You To Know. "The Lead Mask Case." YouTube video. https://www.youtube.com/watch?v=2F2U9hNmWN4

The Casual Criminalist. "The Lead Masks of Vintém Hill." YouTube video. https://www.youtube.com/watch?v=96S5KA4bfp0

Reference Works (Wikipedia)

Wikipedia. "1964 Brazilian coup d'état." https://en.wikipedia.org/w/index.php?title=1964_Brazilian_coup_d%27état&oldid=1340935598.

Wikipedia. "Caso delle maschere di piombo". Italian Wikipedia. https://it.wikipedia.org/w/index.php?title=Caso_delle_maschere_di_piombo&oldid=149654429.

Wikipedia. "Lead masks case". English Wikipedia. https://en.wikipedia.org/wiki/Lead_masks_case.

Social Media & Forums

Unique_Direction_518. "The Lead Masks of Vintem Hill, an unsolved mystery from brazil." Reddit (r/UnresolvedMysteries).https://www.reddit.com/r/UnresolvedMysteries/comments/1ouluy0/the_lead_masks_of_vintem_hill_an_unsolved_mystery/

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CREDITS:

Episode 328: The Lead Masks of Vintém Hill Part 2. Produced by Scott Philbrook & Forrest Burgess. Audio Editing by Sarah Vorhees Wendel of VW Sound. Music and Sound Design by Allen Carrescia. Tess Pfeifle, Producer and Lead Researcher. Ed Voccola, Technical Producer. Research Support from The Astonishing Research Corps, or "A.R.C." for short. Copyright 2026 Astonishing Legends Productions, LLC. All Rights Reserved.

Ep 328: The Lead Masks of Vintém Hill Part 2