Part of the Wibblyverse continuity.

They have ruled for generations and lived for millennia. Their whims move the heavens and shape the earth. Their powers are immense. They are the Princesses. In these brief tales of weird terror, readers will be plunged into the darkness that lies behind the thrones of Equestria.

Find out what truly makes an alicorn in the Transition of Twilight Sparkle, a tale of transformation, terror, and getting 'the Talk' from your mother figure.

When Shining Armor tries to give his wife a massage, the force of an alicorn's uncontrolled power sweep across an empire in Liquid Crystal!

In Your Dreams sees Princess Luna, Defender of the Night, face off against what may be a force too great even for her; Pinkie Pie, loose in the Dreamworld.

In Call of Cthulestia, the Sun Princess considers her sister's banishment on its five-hundredth anniversary.

A bizarre object appears in Ponyville square, and everypony in town has a different idea of what it could be. The only way to truly describe it is as That Thing.

Over three thousand years ago, Luna and Celestia officially met with their new subjects for the first time. It could have gone better. Read about their first days of ruling under the tutelage of Starswirl the Bearded and other advisors in Be Not Afraid.

Ponyville's premier mailmare finds herself in a strange situation when she finds a shapeless figure in her basement in The Shape of Outer Time. The Doctor is in, and Ditzy only wants to know more...

During a visit from the Pie family for Pinkie's birthday, an ancient intelligence locked away in an ancient gemstone wreaks havoc on Ponyville in Rock of Ages. At least, it tries its best.

And more unearthly tales await!