Since birth, all Star Swirl has ever known is the stone walls of Sigilhall, the capital of the unicorn empire. But when he's arrested for treason against the crown, the young spellweaver finds himself thrust into a conspiracy that affects the fate of the three tribes. Now the life of every mare, stallion and foal on Eden depends upon the strength of his resolve and a voice in his dreams. Although he has many unanswered questions, Star Swirl is certain of one thing: his life will never be the same again.