Members of my Rosary group have been talking about a phenomena called, “the three days of darkness,” that has supposedly been foretold by several saints. The story is that a red cross will appear in the sky followed in three days to one week by a night of intense cold followed by three days of darkness during which only blessed candles will shed light. All of the demons of Hell will be released upon the earth and three quarters of humanity will be wiped out by the vengence of God. The only survivors will be those faithful who lock themselves in their houses and cover all windows. When the light returns on the third day, the survivors will come out to a renewed earth and live a pastoral existence.
Have saints actually prophasized such a thing or is this a Catholic urban legend?