While strolling around town, Twilight Sparkle accidentally knocks out Derpy's contact lenses, revealing perfectly normal eyes hidden underneath. So what else could Derpy be faking?
Sunset Shimmer visits the Castle of Friendship, and inadvertently discovers something that Twilight would normally keep hidden under her bed... except that since this is a pony princess we're talking about, it's nothing remotely resembling normal.
When Twilight Sparkle went to bed, she had friends she loved and a life she enjoyed. But she awoke to hospital gowns and padded restraints. And the doctors, they keep telling her that she is sick and none of it was real. They’re lying, right?