In August 1966, two men were discovered lifeless on a remote hillside in Niterói, Brazil, wearing bizarre handmade lead masks and clutching a cryptic note with instructions that defy understanding. Manoel Pereira da Cruz and Miguel José Viana left behind no injuries, no signs of struggle, and no clear cause of death—only unanswered questions.

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Timestamps:
(00:00) Introduction to the Lead Masks Case
(02:15) The Scene in Niterói: Lead Masks and Cryptic Notes
(05:30) Investigative Discoveries: Preparations and Clues
(08:45) Theories Explored: UFOs, Experiments, and Rituals
(12:00) Modern Analysis: What We Still Don’t Know

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