This episode examines the eerie Lead Masks Case of 1966, when two Brazilian men, Manoel Pereira da Cruz and Miguel José Viana, were found dead on a hillside near Niterói. They wore formal suits, raincoats, and handmade lead masks covering their faces. Next to them lay a cryptic note reading: “16:30 be at the designated place. 18:30 swallow capsules, after effect protect metals, await signal mask.”
There were no injuries, weapons, or clear cause of death. The men were known electronics technicians fascinated by spiritualism and UFOs, and witnesses nearby reported seeing a bright orange light in the sky on the night they died.
Theories range from poisoning, ritual experiments, and radiation exposure to the possibility that they were attempting contact with extraterrestrials. The case remains one of Brazil’s most puzzling unsolved mysteries — two men waiting on a hill for a signal that never came.

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