One morning in the vibrant city of Manehattan, a washed-up stallion presents a strange, battered book to Rarity, claiming it to possess an extraordinary ability. But he seems desperate—afraid, like it may not be all it promises.

Urging Rarity to dispose of it, he leaves it in her reluctant possession, hopeful that the elements of harmony can rid its apparently corruptive power from the world. But as Rarity's friends race to Manehattan to help her, will she be able to resist the pull of temptation?

Co-Authors, Cerulean Voice and MissingLink


A book that does whatever is written in its pages…

Take place before S4.