A human soul is stuffed into King Sombra's body. Having no idea what's going on, and thinking he is in some kind of coma, he just casually strolls into the Crystal Empire.
Ocellus wakes Gallus up, claiming to have solved the secret to painful Hearth's Warming Eve get-togethers. He just needs to follow her back to the hive and drink a goblet of magic and his own blood, and relive his worst memory of the holidays.
This year, Hearth's Warming feels different for Spike. As he contemplates what exactly is different, Shining Armor listens. And gives him the answer to his question.
Minuette has an imaginary friend that lives in her mirror. Nopony ever talks about it, but she doesn't really hide it, either. The thing is, her imaginary friend is very real. And he's trapped.
Word around Ponyville is that Queen Chrysalis is planning something. Something big. Something terrible. Something beyond imagination. If only Queen Chrysalis had any idea what that something was.
A new alliance between ponies and changelings have brought the two races together in harmony and friendship. Now, on Hearth's Warming Eve, a changeling drone is preparing a big surprise for her coltfriend.
With the Queen incapacitated, she turns to one of her few subjects who is still in good health to deliver a treaty to the princess, only problem is that the changeling has a phobia for that hatchling eater.
Pinkie Pie starts having odd dreams, a history on her parent's rock farm she never remembered before. At first it seems like just happy times, but then it gets strange.