Princess Luna knows a thing or two about nightmares and dream magic. Her duties at Night Court have become tedious. With the help of some forbidden power she reaches out to a certain Element of Magic for the companionship and knowledge of modern Equestria she desires. But while Luna is distracted and Celestia sleeps, an old evil returns with plans both dire and terrible and a new evil plots under their noses.
(Story takes places roughly between season 2 and season 3, so post-changlings, pre-Sombra)

Cover image by JJ at lovetomorrowlove.tumblr