Dawn, brother and adopted son to Princess Celestia, was captured and cursed by Luna the night she turned against Celestia, hoping to create the immortal pony. As Luna was banished to the moon, Dusk fled the city as his mind suggested. He later found that there was a side-effect to the magic: it had created another pony in the process. His sister, Dusk, was created, and was cursed herself, only able to walk the world during night, while she resides in Dawn's mind during the day as an observer from his point of view. The story starts a short time before Luna's re-awakening, with events taking place all around Equestria. This story will be updated as I think up the story line and have time to write. This is usually updated weekly, most of the time on Fridays or Saturdays...