My Little Pony: Return of the Shadow King

When a human boy awakens in Equestria, he has barely begun to understand what it means to live as a pony—before catastrophe shatters his new world. The Crystal Heart lies in pieces, a sinister underground faction pulls the strings from the shadows, and the dreaded King Sombra has clawed his way back from the abyss. Now the Black Crystal King vows to reclaim his throne and reshape Equestria in darkness. Can one bewildered newcomer find the courage to stand against an ancient evil?