Were the words of Lucia generally known in the Church, among the faithful, before the aurora happened on January 25, 1938? Were there any stories in the Catholic press at the time, saying “this may be the unknown light that Our Lady prophesied at Fatima”?
We discussed this in homeschool literature class, as a segue from a story about the Aztecs and Quetzalcoatl, and called upon my mother, who was 7 years old at the time and recalled seeing it from the southeastern US. Her family was not Catholic and nobody knew of the Fatima message, but they were evangelical Christians and many feared it was the end of the world.
I am also trying to find a way to refute skeptics. If the message and prophecy were known by Catholics at large before the aurora, then nobody could say that the prophecy was fabricated. However, if this part of the message wasn’t revealed until after 1938, it would be very easy for a skeptic to say “there was no prophecy, the Church made up all of this after the fact, and made the prophecy fit the events”.