Putting the atlas aside, she opened up Equestrian History by Sunfire Brand and started reading. Almost immediately, she was lost. Windigoes? Some sort of "magical" creature that fed off strife and created cold weather? Was this history, or mythology? She flipped through the book detailing the original founding of Equestria by the three pony tribes, stopping at the first mention of the "royal princesses". Apparently, originally, there were two royal princesses, though the book was vague on where they came from. Celestia, the princess of the day, and Luna, princess of the night. 