History remembers King Sombra (when it remembers him at all) as a slavering beast so consumed by his lust for power that he plunged an entire empire into ruin. But who was Sombra? Why did he do what he did? What did he even do?

Nopony is born evil and Sombra was no exception. He was once the star pupil of Princess Luna, back in the golden age before her banishment. He had friends. He had love. He had tragedy and loss and betrayal. He had all of this and more long before he had...

A Heart as Black as Night.