VIDEOS:
Buried in a Good Book
The Mane Six and Sparky get sucked into a book courtesy of a spell gone wrong by Misty Brightdawn, and have to complete the quests within the book in order to escape.
Example of:
Portal Book
Ponies vs. Shadow Dragons
Example of:
Face Your Fears
Bridlewoog Spog
Example of:
Tempting Fate
Sisters vs. Mother
Example of:
Death Glare
The Mane 5 Get Corrupted
Example of:
Corrupt the Cutie
Misty Saves The Mane 5
Example of:
Big Damn Heroes