🙋 I saw this too

Vril: The Coming Race (1871) by Edward Bulwer-Lytton, 1st Edition - Origin of the Subterranean "Breakaway" Civilization concept and influence on Nazi UFO lore.London, England, United Kingdom

Did you see the same thing — or something like it — at the same time? Add your own account. Several independent witnesses is the strongest evidence a sighting can have.