Twilight, Pinkie and others in “Unfinished Business”

Twilight

I read all about the prediction of Nightmare Moon. Some mysterious objects called the Elements of Harmony are the only things that can stop her, but I don't know what they are, where to find them... I don't even know what they do!

[finds a book] "The Elements of Harmony: A Reference Guide".

Twilight

How did you find that?

[singsong] It was under "E"!

Twilight

Oh. [reading about the Elements of Harmony] There are six Elements of Harmony, but only five are known: Kindness, Laughter, Generosity, Honesty, and Loyalty. The sixth is a complete mystery. It is said the last known location of the five Elements was in the ancient Castle of the Royal Pony Sisters. It is located in what is now...

The Everfree Forest!