Crisis On Earth-X (Fan Fiction) (Arrowverse x Lucifer)

When Barry Allen's wedding is interrupted by Nazis from Earth-X, a man in a suit comes and saves them when the Dark Arrow and Overgirl escape. But they never thought that the man would turn out to be... The Devil.

{{THIS IS NOT CONNECTED TO MY FLASH FAN FICTION WHERE BARRY IS THE SON OF LUCIFER. CAUSE THAT BARRY DOESN'T MEET LUCIFER TILL THE CRISIS ON INFINITE EARTHS, AND SAM ALLEN DOESN'T EXIST IN THIS UNIVERSE}}