Talks broke down. The unification failed. The Great Pony War had divided the land, and fears of a prophecy forced the unicorns deep underground and into near extinction.

Almost one thousand years have passed.  The curious unicorn Sparkle yearns to breach the surface to discover its many wonders and to search for her missing father and brother, both of whom crossed over many years ago.  She is forbidden to leave the safety of her subterranean village of Unicornia until she discovers an orange earth pony washed up on the shores of the underground river.  

Cover art credit goes to ouyrof.