it turns out another Cadence is not from the world of lonely Twi?

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Yep in a way, this is a world where Tirek won. And then discover what happens when Twilight forgets the magic of friendship.

The answer? Something very scary

"The pound" Mark whispered as he realized what was happening.

pond

"Hey ideas could come up from anywhere I suppose"

So Meta

"We have all sorts of things like this thanks to their trip and their decision to keep connection with a town called Zephyr High, one pegasus princess even became a huge sensation that breathed even more life into our otherwise gloom world. Things had yet another happy ending" She smiled and put it away "Our world was slowly recovering and we all were healing on our way as a result. That is when I decided to set my mind on the next piece of the puzzle missing, The princesses" Twilight tries to stand up and with the help of Mark this time succeeds.

G5 reference

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Correct, Future Cadence made and has keeping contact with G5 Equestria.

Pip has become an influencer in two worlds now.