Beautiful, gifted, and faithful student of the Princess of the Sun, Siren Song has very nearly everything a pony could want. Sometimes though, in the twilight hours, Siren can see the sadness in her mentor's eyes. Once, ponies whisper, the Princess had another student named Twilight Sparkle, but she left Equestria, never to return. The pony who has a perfect life just needs one more thing—to convince Twilight Sparkle to come home so the Princess will smile again. Siren will soon learn, however, that not all of the world is as kind as Equestria. Beyond the spires of Canterlot, she will discover a new city, a place of horror and awe, of suffering and beauty: Vision.
Book one of the Vision series.