The truth behind Everfree Prince Gale and Gaia Everfree/Ryan and Gloriosa transform

This is how the truth behind Everfree Prince Gale and Gaia Everfree and Ryan and Gloriosa transform goes in Ryan's and Crash's Adventures of My Little Pony: Equestria Girls - Legend of Everfree.

[As Ryan and Sunset follow Timber through the forest, they briefly feel the earth tremble again]

Ryan F-Freeman: Whoa! What happened?

Sunset Shimmer: I don't know.

Ryan F-Freeman: Is it Gaia? Is it Megatron? It's not Megatron is it?

[Sunset shakes her head for no. Nearby, they see a shadowy figure enter a cave by the supposedly off-limits rock quarry]

Ryan F-Freeman: Who do you think that is, Sunset?

Sunset Shimmer: I think that looked like Timber's shape.

[There is another rumble and then magic noises]

Sunset Shimmer: Ah, shoot! He's definitely up to something!