Cain, Meylin, and Bahamut all adopted somber expressions as they absorbed Lady Alune's words. The highest realms of the Crimson World were layers that held Prime Deities—beings of such immense power that they could wipe out entire continents with their might. Any clash that involved them would definitely be more than any of them could handle.
Lady Alune gave them a moment to analyze her words before continuing. "The Sun Lord chose the wrong side, so the Three Sacred Moons peered into the river of time, searching among the infinite stream of causality for a path that could spell his doom. They did this for hundreds of years, and nothing happened—until around seven years ago when a man from another universe managed to make his way into the Crimson World."